status of ssr1 and ssr2 - fermilab indico
TRANSCRIPT
Leonardo RistoriP2MAC Meeting9-10 March 2015
Status ofSSR1 and SSR2
Overview
bull 325 MHz section of PIP-II Linacbull SSR1 amp SSR2 Cryomodules bull SSR1 development
ndash Focusing elementsndash SRF cavities ndash Tunersndash Couplers
bull SSR1 schedule bull SSR1 collaboration with IUACbull SSR2 design status
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20152
PIP-II Superconducting Linac (RDR 213)
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20153
SSR1 Cryomodule
5213 m13 long13 813 Cav13 +13 413 Magnets13
Bo5om-shy‐supported13 elements13 with13 warm13 strongback13
Tuner13 access13 ports13
Current13 leads13
Alignment13 13 viewports13
Couplers13
T13 Nicol13 Y13 Orlov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20154
SSR2 cryomodule
6513 m13 long13 513 Cav13 +13 313 Magnets13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20155
SSR1 CAVITY-MAGNET STRING
bull 2 versions of cavities (A amp B)bull 4 Solenoids+BPMbull Vacuum manifoldbull 13 interconnecting bellows (4 types)
T13 Nicol13 Y13 Orlov13
CAVITY-shy‐MAGNET
13 STRING13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20156
Focusing Elements
Lens13 strength13 (T2middot∙m)13 13 13 13 413 13 13 Steering13 dipole13 strength13 (Tmiddot∙m)13 13 13 13 25middot∙10-shy‐313 13 13
Insergton13 length13 max13 (mm)13 13 13 16013 13 Ferromagnegtc13 shielding 13 13 13 NO 13 13 Magnegtc13 field13 on13 Cavity13 max13 (μT)13 13 05middot∙Q013 criterion13 Transverse13 misalignment13 (mm)13 13 13 0513 RMS13 13 13 Angular13 misalignment13 (mrad)13 13 13 13 113 RMS13 13 13
Effects13 of13 magneQc13 field13 trapping13 during13 quenching13
Axial13 Field13 Measured13 vs13 Predicted13
Quench13 Performance13 at13 413 K13 and13 213 K13
Cavity13 Q13 degradaQon13 predicted13 vs13 measured13
Solenoid13 installed13 on13 SSR113 during13 VTS13 tests13
Excellent13 agreement13 between13 predicted13 and13 measured13 performances13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20157
1 Prototype13 lensrsquo13 cold13 mass13 procured13 and13 tested13 at13 213 K13 2 The13 lens13 assembled13 and13 re-shy‐tested13 3 PosiQon13 of13 magneQc13 axis13 was13 measured13 by13 the13
vendor13 and13 at13 Fermilab13 ΔR13 lt13 0213 mm13 Δα13 lt13 0713 mrad13
Maximum13 field13 on13 the13 surface13 of13 the13 cavity13 is13 below13 513 G13
1 Four13 producQon13 lensesrsquo13 cold13 masses13 procured13 and13 tested13 at13 413 K13 by13 the13 vendor13
2 The13 lenses13 have13 been13 prepared13 for13 the13 final13 performance13 test13 in13 the13 VTS13 at13 213 K13
Prototype13 FL13
Producgton13 FL13
0 5 10 15 20 25 30 35 40 45 50-200
-100
0
100
200
300
400
500
Time (s) x 200
Volta
ge (V
)
020
4060
80
05
10150
10
20
30
40
50
60
70
80
90
ZB
T (K)
10
20
30
40
50
60
70
80
Temperature Distribution in C2
Quench13 protecgton13 studies13 Voltage13 to13 the13 ground13 in13 the13 main13 coil13 Temperature13 in13 quenching13 bucking13 coil13
Focusing Elements
Producgton13 completed13 cold13 tests13 next13 month13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20158
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Overview
bull 325 MHz section of PIP-II Linacbull SSR1 amp SSR2 Cryomodules bull SSR1 development
ndash Focusing elementsndash SRF cavities ndash Tunersndash Couplers
bull SSR1 schedule bull SSR1 collaboration with IUACbull SSR2 design status
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20152
PIP-II Superconducting Linac (RDR 213)
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20153
SSR1 Cryomodule
5213 m13 long13 813 Cav13 +13 413 Magnets13
Bo5om-shy‐supported13 elements13 with13 warm13 strongback13
Tuner13 access13 ports13
Current13 leads13
Alignment13 13 viewports13
Couplers13
T13 Nicol13 Y13 Orlov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20154
SSR2 cryomodule
6513 m13 long13 513 Cav13 +13 313 Magnets13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20155
SSR1 CAVITY-MAGNET STRING
bull 2 versions of cavities (A amp B)bull 4 Solenoids+BPMbull Vacuum manifoldbull 13 interconnecting bellows (4 types)
T13 Nicol13 Y13 Orlov13
CAVITY-shy‐MAGNET
13 STRING13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20156
Focusing Elements
Lens13 strength13 (T2middot∙m)13 13 13 13 413 13 13 Steering13 dipole13 strength13 (Tmiddot∙m)13 13 13 13 25middot∙10-shy‐313 13 13
Insergton13 length13 max13 (mm)13 13 13 16013 13 Ferromagnegtc13 shielding 13 13 13 NO 13 13 Magnegtc13 field13 on13 Cavity13 max13 (μT)13 13 05middot∙Q013 criterion13 Transverse13 misalignment13 (mm)13 13 13 0513 RMS13 13 13 Angular13 misalignment13 (mrad)13 13 13 13 113 RMS13 13 13
Effects13 of13 magneQc13 field13 trapping13 during13 quenching13
Axial13 Field13 Measured13 vs13 Predicted13
Quench13 Performance13 at13 413 K13 and13 213 K13
Cavity13 Q13 degradaQon13 predicted13 vs13 measured13
Solenoid13 installed13 on13 SSR113 during13 VTS13 tests13
Excellent13 agreement13 between13 predicted13 and13 measured13 performances13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20157
1 Prototype13 lensrsquo13 cold13 mass13 procured13 and13 tested13 at13 213 K13 2 The13 lens13 assembled13 and13 re-shy‐tested13 3 PosiQon13 of13 magneQc13 axis13 was13 measured13 by13 the13
vendor13 and13 at13 Fermilab13 ΔR13 lt13 0213 mm13 Δα13 lt13 0713 mrad13
Maximum13 field13 on13 the13 surface13 of13 the13 cavity13 is13 below13 513 G13
1 Four13 producQon13 lensesrsquo13 cold13 masses13 procured13 and13 tested13 at13 413 K13 by13 the13 vendor13
2 The13 lenses13 have13 been13 prepared13 for13 the13 final13 performance13 test13 in13 the13 VTS13 at13 213 K13
Prototype13 FL13
Producgton13 FL13
0 5 10 15 20 25 30 35 40 45 50-200
-100
0
100
200
300
400
500
Time (s) x 200
Volta
ge (V
)
020
4060
80
05
10150
10
20
30
40
50
60
70
80
90
ZB
T (K)
10
20
30
40
50
60
70
80
Temperature Distribution in C2
Quench13 protecgton13 studies13 Voltage13 to13 the13 ground13 in13 the13 main13 coil13 Temperature13 in13 quenching13 bucking13 coil13
Focusing Elements
Producgton13 completed13 cold13 tests13 next13 month13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20158
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
PIP-II Superconducting Linac (RDR 213)
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20153
SSR1 Cryomodule
5213 m13 long13 813 Cav13 +13 413 Magnets13
Bo5om-shy‐supported13 elements13 with13 warm13 strongback13
Tuner13 access13 ports13
Current13 leads13
Alignment13 13 viewports13
Couplers13
T13 Nicol13 Y13 Orlov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20154
SSR2 cryomodule
6513 m13 long13 513 Cav13 +13 313 Magnets13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20155
SSR1 CAVITY-MAGNET STRING
bull 2 versions of cavities (A amp B)bull 4 Solenoids+BPMbull Vacuum manifoldbull 13 interconnecting bellows (4 types)
T13 Nicol13 Y13 Orlov13
CAVITY-shy‐MAGNET
13 STRING13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20156
Focusing Elements
Lens13 strength13 (T2middot∙m)13 13 13 13 413 13 13 Steering13 dipole13 strength13 (Tmiddot∙m)13 13 13 13 25middot∙10-shy‐313 13 13
Insergton13 length13 max13 (mm)13 13 13 16013 13 Ferromagnegtc13 shielding 13 13 13 NO 13 13 Magnegtc13 field13 on13 Cavity13 max13 (μT)13 13 05middot∙Q013 criterion13 Transverse13 misalignment13 (mm)13 13 13 0513 RMS13 13 13 Angular13 misalignment13 (mrad)13 13 13 13 113 RMS13 13 13
Effects13 of13 magneQc13 field13 trapping13 during13 quenching13
Axial13 Field13 Measured13 vs13 Predicted13
Quench13 Performance13 at13 413 K13 and13 213 K13
Cavity13 Q13 degradaQon13 predicted13 vs13 measured13
Solenoid13 installed13 on13 SSR113 during13 VTS13 tests13
Excellent13 agreement13 between13 predicted13 and13 measured13 performances13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20157
1 Prototype13 lensrsquo13 cold13 mass13 procured13 and13 tested13 at13 213 K13 2 The13 lens13 assembled13 and13 re-shy‐tested13 3 PosiQon13 of13 magneQc13 axis13 was13 measured13 by13 the13
vendor13 and13 at13 Fermilab13 ΔR13 lt13 0213 mm13 Δα13 lt13 0713 mrad13
Maximum13 field13 on13 the13 surface13 of13 the13 cavity13 is13 below13 513 G13
1 Four13 producQon13 lensesrsquo13 cold13 masses13 procured13 and13 tested13 at13 413 K13 by13 the13 vendor13
2 The13 lenses13 have13 been13 prepared13 for13 the13 final13 performance13 test13 in13 the13 VTS13 at13 213 K13
Prototype13 FL13
Producgton13 FL13
0 5 10 15 20 25 30 35 40 45 50-200
-100
0
100
200
300
400
500
Time (s) x 200
Volta
ge (V
)
020
4060
80
05
10150
10
20
30
40
50
60
70
80
90
ZB
T (K)
10
20
30
40
50
60
70
80
Temperature Distribution in C2
Quench13 protecgton13 studies13 Voltage13 to13 the13 ground13 in13 the13 main13 coil13 Temperature13 in13 quenching13 bucking13 coil13
Focusing Elements
Producgton13 completed13 cold13 tests13 next13 month13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20158
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1 Cryomodule
5213 m13 long13 813 Cav13 +13 413 Magnets13
Bo5om-shy‐supported13 elements13 with13 warm13 strongback13
Tuner13 access13 ports13
Current13 leads13
Alignment13 13 viewports13
Couplers13
T13 Nicol13 Y13 Orlov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20154
SSR2 cryomodule
6513 m13 long13 513 Cav13 +13 313 Magnets13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20155
SSR1 CAVITY-MAGNET STRING
bull 2 versions of cavities (A amp B)bull 4 Solenoids+BPMbull Vacuum manifoldbull 13 interconnecting bellows (4 types)
T13 Nicol13 Y13 Orlov13
CAVITY-shy‐MAGNET
13 STRING13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20156
Focusing Elements
Lens13 strength13 (T2middot∙m)13 13 13 13 413 13 13 Steering13 dipole13 strength13 (Tmiddot∙m)13 13 13 13 25middot∙10-shy‐313 13 13
Insergton13 length13 max13 (mm)13 13 13 16013 13 Ferromagnegtc13 shielding 13 13 13 NO 13 13 Magnegtc13 field13 on13 Cavity13 max13 (μT)13 13 05middot∙Q013 criterion13 Transverse13 misalignment13 (mm)13 13 13 0513 RMS13 13 13 Angular13 misalignment13 (mrad)13 13 13 13 113 RMS13 13 13
Effects13 of13 magneQc13 field13 trapping13 during13 quenching13
Axial13 Field13 Measured13 vs13 Predicted13
Quench13 Performance13 at13 413 K13 and13 213 K13
Cavity13 Q13 degradaQon13 predicted13 vs13 measured13
Solenoid13 installed13 on13 SSR113 during13 VTS13 tests13
Excellent13 agreement13 between13 predicted13 and13 measured13 performances13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20157
1 Prototype13 lensrsquo13 cold13 mass13 procured13 and13 tested13 at13 213 K13 2 The13 lens13 assembled13 and13 re-shy‐tested13 3 PosiQon13 of13 magneQc13 axis13 was13 measured13 by13 the13
vendor13 and13 at13 Fermilab13 ΔR13 lt13 0213 mm13 Δα13 lt13 0713 mrad13
Maximum13 field13 on13 the13 surface13 of13 the13 cavity13 is13 below13 513 G13
1 Four13 producQon13 lensesrsquo13 cold13 masses13 procured13 and13 tested13 at13 413 K13 by13 the13 vendor13
2 The13 lenses13 have13 been13 prepared13 for13 the13 final13 performance13 test13 in13 the13 VTS13 at13 213 K13
Prototype13 FL13
Producgton13 FL13
0 5 10 15 20 25 30 35 40 45 50-200
-100
0
100
200
300
400
500
Time (s) x 200
Volta
ge (V
)
020
4060
80
05
10150
10
20
30
40
50
60
70
80
90
ZB
T (K)
10
20
30
40
50
60
70
80
Temperature Distribution in C2
Quench13 protecgton13 studies13 Voltage13 to13 the13 ground13 in13 the13 main13 coil13 Temperature13 in13 quenching13 bucking13 coil13
Focusing Elements
Producgton13 completed13 cold13 tests13 next13 month13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20158
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR2 cryomodule
6513 m13 long13 513 Cav13 +13 313 Magnets13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20155
SSR1 CAVITY-MAGNET STRING
bull 2 versions of cavities (A amp B)bull 4 Solenoids+BPMbull Vacuum manifoldbull 13 interconnecting bellows (4 types)
T13 Nicol13 Y13 Orlov13
CAVITY-shy‐MAGNET
13 STRING13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20156
Focusing Elements
Lens13 strength13 (T2middot∙m)13 13 13 13 413 13 13 Steering13 dipole13 strength13 (Tmiddot∙m)13 13 13 13 25middot∙10-shy‐313 13 13
Insergton13 length13 max13 (mm)13 13 13 16013 13 Ferromagnegtc13 shielding 13 13 13 NO 13 13 Magnegtc13 field13 on13 Cavity13 max13 (μT)13 13 05middot∙Q013 criterion13 Transverse13 misalignment13 (mm)13 13 13 0513 RMS13 13 13 Angular13 misalignment13 (mrad)13 13 13 13 113 RMS13 13 13
Effects13 of13 magneQc13 field13 trapping13 during13 quenching13
Axial13 Field13 Measured13 vs13 Predicted13
Quench13 Performance13 at13 413 K13 and13 213 K13
Cavity13 Q13 degradaQon13 predicted13 vs13 measured13
Solenoid13 installed13 on13 SSR113 during13 VTS13 tests13
Excellent13 agreement13 between13 predicted13 and13 measured13 performances13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20157
1 Prototype13 lensrsquo13 cold13 mass13 procured13 and13 tested13 at13 213 K13 2 The13 lens13 assembled13 and13 re-shy‐tested13 3 PosiQon13 of13 magneQc13 axis13 was13 measured13 by13 the13
vendor13 and13 at13 Fermilab13 ΔR13 lt13 0213 mm13 Δα13 lt13 0713 mrad13
Maximum13 field13 on13 the13 surface13 of13 the13 cavity13 is13 below13 513 G13
1 Four13 producQon13 lensesrsquo13 cold13 masses13 procured13 and13 tested13 at13 413 K13 by13 the13 vendor13
2 The13 lenses13 have13 been13 prepared13 for13 the13 final13 performance13 test13 in13 the13 VTS13 at13 213 K13
Prototype13 FL13
Producgton13 FL13
0 5 10 15 20 25 30 35 40 45 50-200
-100
0
100
200
300
400
500
Time (s) x 200
Volta
ge (V
)
020
4060
80
05
10150
10
20
30
40
50
60
70
80
90
ZB
T (K)
10
20
30
40
50
60
70
80
Temperature Distribution in C2
Quench13 protecgton13 studies13 Voltage13 to13 the13 ground13 in13 the13 main13 coil13 Temperature13 in13 quenching13 bucking13 coil13
Focusing Elements
Producgton13 completed13 cold13 tests13 next13 month13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20158
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1 CAVITY-MAGNET STRING
bull 2 versions of cavities (A amp B)bull 4 Solenoids+BPMbull Vacuum manifoldbull 13 interconnecting bellows (4 types)
T13 Nicol13 Y13 Orlov13
CAVITY-shy‐MAGNET
13 STRING13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20156
Focusing Elements
Lens13 strength13 (T2middot∙m)13 13 13 13 413 13 13 Steering13 dipole13 strength13 (Tmiddot∙m)13 13 13 13 25middot∙10-shy‐313 13 13
Insergton13 length13 max13 (mm)13 13 13 16013 13 Ferromagnegtc13 shielding 13 13 13 NO 13 13 Magnegtc13 field13 on13 Cavity13 max13 (μT)13 13 05middot∙Q013 criterion13 Transverse13 misalignment13 (mm)13 13 13 0513 RMS13 13 13 Angular13 misalignment13 (mrad)13 13 13 13 113 RMS13 13 13
Effects13 of13 magneQc13 field13 trapping13 during13 quenching13
Axial13 Field13 Measured13 vs13 Predicted13
Quench13 Performance13 at13 413 K13 and13 213 K13
Cavity13 Q13 degradaQon13 predicted13 vs13 measured13
Solenoid13 installed13 on13 SSR113 during13 VTS13 tests13
Excellent13 agreement13 between13 predicted13 and13 measured13 performances13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20157
1 Prototype13 lensrsquo13 cold13 mass13 procured13 and13 tested13 at13 213 K13 2 The13 lens13 assembled13 and13 re-shy‐tested13 3 PosiQon13 of13 magneQc13 axis13 was13 measured13 by13 the13
vendor13 and13 at13 Fermilab13 ΔR13 lt13 0213 mm13 Δα13 lt13 0713 mrad13
Maximum13 field13 on13 the13 surface13 of13 the13 cavity13 is13 below13 513 G13
1 Four13 producQon13 lensesrsquo13 cold13 masses13 procured13 and13 tested13 at13 413 K13 by13 the13 vendor13
2 The13 lenses13 have13 been13 prepared13 for13 the13 final13 performance13 test13 in13 the13 VTS13 at13 213 K13
Prototype13 FL13
Producgton13 FL13
0 5 10 15 20 25 30 35 40 45 50-200
-100
0
100
200
300
400
500
Time (s) x 200
Volta
ge (V
)
020
4060
80
05
10150
10
20
30
40
50
60
70
80
90
ZB
T (K)
10
20
30
40
50
60
70
80
Temperature Distribution in C2
Quench13 protecgton13 studies13 Voltage13 to13 the13 ground13 in13 the13 main13 coil13 Temperature13 in13 quenching13 bucking13 coil13
Focusing Elements
Producgton13 completed13 cold13 tests13 next13 month13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20158
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Focusing Elements
Lens13 strength13 (T2middot∙m)13 13 13 13 413 13 13 Steering13 dipole13 strength13 (Tmiddot∙m)13 13 13 13 25middot∙10-shy‐313 13 13
Insergton13 length13 max13 (mm)13 13 13 16013 13 Ferromagnegtc13 shielding 13 13 13 NO 13 13 Magnegtc13 field13 on13 Cavity13 max13 (μT)13 13 05middot∙Q013 criterion13 Transverse13 misalignment13 (mm)13 13 13 0513 RMS13 13 13 Angular13 misalignment13 (mrad)13 13 13 13 113 RMS13 13 13
Effects13 of13 magneQc13 field13 trapping13 during13 quenching13
Axial13 Field13 Measured13 vs13 Predicted13
Quench13 Performance13 at13 413 K13 and13 213 K13
Cavity13 Q13 degradaQon13 predicted13 vs13 measured13
Solenoid13 installed13 on13 SSR113 during13 VTS13 tests13
Excellent13 agreement13 between13 predicted13 and13 measured13 performances13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20157
1 Prototype13 lensrsquo13 cold13 mass13 procured13 and13 tested13 at13 213 K13 2 The13 lens13 assembled13 and13 re-shy‐tested13 3 PosiQon13 of13 magneQc13 axis13 was13 measured13 by13 the13
vendor13 and13 at13 Fermilab13 ΔR13 lt13 0213 mm13 Δα13 lt13 0713 mrad13
Maximum13 field13 on13 the13 surface13 of13 the13 cavity13 is13 below13 513 G13
1 Four13 producQon13 lensesrsquo13 cold13 masses13 procured13 and13 tested13 at13 413 K13 by13 the13 vendor13
2 The13 lenses13 have13 been13 prepared13 for13 the13 final13 performance13 test13 in13 the13 VTS13 at13 213 K13
Prototype13 FL13
Producgton13 FL13
0 5 10 15 20 25 30 35 40 45 50-200
-100
0
100
200
300
400
500
Time (s) x 200
Volta
ge (V
)
020
4060
80
05
10150
10
20
30
40
50
60
70
80
90
ZB
T (K)
10
20
30
40
50
60
70
80
Temperature Distribution in C2
Quench13 protecgton13 studies13 Voltage13 to13 the13 ground13 in13 the13 main13 coil13 Temperature13 in13 quenching13 bucking13 coil13
Focusing Elements
Producgton13 completed13 cold13 tests13 next13 month13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20158
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
1 Prototype13 lensrsquo13 cold13 mass13 procured13 and13 tested13 at13 213 K13 2 The13 lens13 assembled13 and13 re-shy‐tested13 3 PosiQon13 of13 magneQc13 axis13 was13 measured13 by13 the13
vendor13 and13 at13 Fermilab13 ΔR13 lt13 0213 mm13 Δα13 lt13 0713 mrad13
Maximum13 field13 on13 the13 surface13 of13 the13 cavity13 is13 below13 513 G13
1 Four13 producQon13 lensesrsquo13 cold13 masses13 procured13 and13 tested13 at13 413 K13 by13 the13 vendor13
2 The13 lenses13 have13 been13 prepared13 for13 the13 final13 performance13 test13 in13 the13 VTS13 at13 213 K13
Prototype13 FL13
Producgton13 FL13
0 5 10 15 20 25 30 35 40 45 50-200
-100
0
100
200
300
400
500
Time (s) x 200
Volta
ge (V
)
020
4060
80
05
10150
10
20
30
40
50
60
70
80
90
ZB
T (K)
10
20
30
40
50
60
70
80
Temperature Distribution in C2
Quench13 protecgton13 studies13 Voltage13 to13 the13 ground13 in13 the13 main13 coil13 Temperature13 in13 quenching13 bucking13 coil13
Focusing Elements
Producgton13 completed13 cold13 tests13 next13 month13
I13 Terechkine13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20158
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1 SSR2 ndash Main Requirements
SSR113 SSR213
Frequency 325 MHz
Operation Pulsed CW
βOPT13 022213 047513
Gaincav 2 MeV 5 MeV
Q0 at 2K gt 06 101013 gt 08 101013
Bpeak13 581 mT13 645 mT13
Epeak13 384 MVm13 40 MVm13
Surface Res13 14 nΩ13 14 nΩ13
LEFF (βλ)13 205 mm13 438 mm13
G13 84 Ω13 115 Ω13
RQ13 242 Ω13 296 Ω13
LFD sensitivity lt 5 Hz(MVm)2
Tuning constant13 40 NkHz13 90 NkHz13
LHe Sensitivity13 lt 25 Hztorr13
SSR1
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 20159
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
RF design of SSR1 Ivan13 Gonin13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201510
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Multipacting studies Gennady13 Romanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201511
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Lorenz-Force Detuning studies
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -169 4000 -169 400 -338 40 -507 0 -76
ProducQon13 Prototype13
Spring Const [kNmm]
LFD [Hz(MVm)^2]
infin -274 4000 -295 200 -463 100 -485 40 -527 0 -548
The13 LFD13 factor13 of13 SSR113 was13 studied13 with13 various13 boundary13 condiQons13 In13 working13 condiQons13 the13 predicted13 LFD13 factor13 is13 less13 than13 -shy‐13 313 Hz(MVm)213 The13 requirement13 is13 lt13 513 Hz(MVm)213
M13 Awida13 Hassan13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201512
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1- Sensitivity to He pressure variations
SSR1 must operate within a small bandwidth plusmn 20 HzPressure of LHe can vary by plusmn 05 Torr in the cryomoduleA self-compensating design was developed allowing low sensitivityDespite non-negligible deformations (see picture) net shift is very low thanks to Slaterrsquos TheoremBare cavity ~ 600 HzTorr with He vessel ~ 10 HztorrEase of tuning 39 NkHz (bare) 40 NkHz (with He vessel)
bull DeformaQons13 in13 high13 E13 and13 B13 regions13 balance13 out13 resulQng13 in13 a13 small13 frequency13 shij13 (Slaterrsquos13 Theorem)13
D13 Passarelli13
Tuning13
13 It13 is13 possible13 to13 reduce13 sensiQvity13 without13 increasing13 rigidity13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201513
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Harmonic Analysis ndash SSR1OscillaQng13 force13 f13 (xyz)13
rigid13 modes13 (not13 criQcal)13
lowest13 RF-shy‐coupled13 mode13 (well13 above13 10013 Hz)13
hazard13 13 13 zone13
L13 Ristori13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201514
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
ProcessingTesting steps (ANL FNAL)1 Inspection ndash RF amp Optical
2 BCP 120-150 microm (flip half-way)
3 HPR
4 600 degC 10 h (lt 5degCmin ramp rate)
5 RF Tuning
6 BCP 20-30 microm
7 HPR (horiz + vert)
8 Assemble
9 Evacuate + 120 degC 48 h
10 Vertical Test
11 Helium Vessel Dressing
12 RF Tuning
13 BCP 20-30 microm
14 HPR
13 Assemble
14 Evacuate + 120 degC 48 h
15 Horizontal Test
16 Ready for String
Low-shy‐Temp13 Ovens13 (lt300rsquoC)13
High-shy‐Temp13 Oven13 (lt1000rsquoC)13
FNAL13 FNAL13
Bare13 cavity13 BCP13 setup13
ANL13
ANL13 ANL13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201515
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Status of SSR1 cavities
bull Most13 of13 the13 1013 producQon13 caviQes13 are13 in13 the13 jackeQng13 stage13 bull S10713 is13 leading13 the13 group13 2nd13 test13 in13 STC13 to13 qualify13 prototype13
coupler13 and13 tuner13 bull S10613 and13 S10513 are13 trailing13 due13 to13 repairs13
913 of13 1013 Delivery13 13
(Bare13 Cavity)13
913 of13 1013 Cold13 Test13
(Bare13 Cavity)13 313 of13 1013 JackeQng13
113 of13 1013 Cold13 Test13 (Jacketed13 Cavity)13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201516
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Vertical Test Stand (VTS)Successful13 qualificaQon13 of13 producQon13 caviQes13 for13 PXIE13 cryomodule13
A13 Sukhanov13
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Radi
atio
n m
Rh
-210
-110
1
10
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0QS1H-NR-105 June 27 2012S1H-NR-107 July 30 2012S1H-NR-109 November 14 2012S1H-NR-108 January 16 2013S1H-NR-113 March 7 2013S1H-NR-110 April 26 2013S1H-NR-112 May 31 2013S1H-NR-114 October 2 2013S1H-NR-111 October 8 2013S1H-NR-106 February 19 2015PIP-II specifications
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201517
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Spoke Test-Cryostat (STC) ndash S107 Run 1
Sep-shy‐Oct13 201413 Successful13 cold13 tests13 of13 first13 producQon13 SSR113 (S107)13 and13 piezo13 encapsulaQons13 13
S1H-NR-107
bullQ0 vs Eacc
9
MVmλβacc=VaccE0 2 4 6 8 10 12 14 16 18 20 22
10 1
0times 0
Q
-210
-110
1
10
Rad
iatio
n m
Rh
-110
1
10
210
310
410
510
MVmpkE0 10 20 30 40 50 60 70 80
mTpkB0 20 40 60 80 100 120
- solid marker X-ray - empty marker0Q
S1H-ZN-107 2K VTS July 30 2012S1H-ZN-107 2K STC August 22 2014PXIE specifications
A13 Hocker13 A13 Sukhanov13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201518
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Prototype Tuner
Cartridge13 with13 motor13 and13 piezos13
InstallaQon13 of13 cartridge13 Alignment13 system13 for13 main13 arms13
Piezo13 encapsulaQons13 include13 bellows13 for13 retainment13
D13 Passarelli13
Parameter Req
Coarse range gt 135 kHz
Fine range gt 1 kHz
Coarse resol lt 20 Hz
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201519
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Couplersbull We have 3 prototypes
ndash 2 installed on RF test stand 1 installed on first production cavity in STCbull Design was changed to address several issues
ndash upgrade to aluminum seals increase thickness of electro-deposited bellows
bull All components for 10 production couplers have been orderedndash cold-ends are needed for qualification of cavities
S13 Kazakov13 O13 Pronitchev13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201520
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Prototype couplers
Warm13 Outer13 conductor13 Electro-shy‐deposited13 bellows13
(Cu-shy‐Ni13 layers)13
Warm13 Inner13 conductor13
Cold-shy‐end13 assembly13
RF13 test13 stand13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201521
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Preparations for Run 2 ndash Installation of prototype coupler
-shy‐ All13 work13 done13 at13 MP913 -shy‐ Unity13 coupler13 was13
replaced13 with13 prototype13 high-shy‐power13 coupler13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201522
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
mascot13 ldquoPiprdquo13
Prototype13 coupler13
S10713 ndash13 Run13 213
Prototype13 tuner13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201523
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Other cryomodule components received as of today
Vacuum13 vessel13
Focusing13 Elements13 Support13 Posts13 Strong-shy‐back13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201524
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1 Cryomodule Schedule
bull String assembly rehearsal ndash July - Aug 2015
bull Cav qualificationsndash Nov 2015 - Apr 2016
bull String assemblyndash May - July 2016
bull Cold mass assembly ndash Aug - Nov 2016
bull Cryomodule assembly ndash Oct 2016 - May 2017
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201525
1201613
1201713
TODAY13
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1 - Collaboration with IUAC (New Delhi) ndash PN Prakash
bull IUAC13 is13 developing13 213 SSR113 caviQes13
bull Slightly13 different13 process13 with13 EP13 components13 (intead13 of13 BCP)13
bull InteresQng13 to13 compare13 results13 13
bull Delivery13 this13 year13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201526
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
RF Design of SSR2 - Multipacting
Most13 severe13 mulQpacQng13 take13 place13 near13 transiQon13 of13 cylindrical13 part13 to13 end13 walls13 Several13 design13 opQons13 of13 this13 transiQon13 was13 considered13 Most13 significant13 improvement13 was13 achieved13 ajer13 introducing13 addiQonal13 step13 in13 the13 transiQon13 are13
ModificaQon13 of13 this13 transiQon13 reduce13 mulQpacQng13 in13 operaQng13 range13 of13 cavity13 fields13
SSR213 v113
SSR213 v2613 SSR213 v2613
P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201527
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR2 - Multipacting SEY comparison
Secondary13 Emission13 Yield13 (SEY)significantly13 reduced13 in13 the13 operaQng13 gradient13 range13 of13 5-shy‐1213 MVm13 Comparison13 with13 SSR113 cavity13 demonstrates13 that13 mulQpacQng13 in13 the13 modified13 SSR213 cavity13 version13 2613 can13 be13 processed13 away13 easier13 than13 in13 SSR113 cavity13
P13 Berrut13
Parameters SSR2 v1 SSR2 v26
Optimal beta 0471 0475
EpeakEacc 345 369
BpeakEacc [mT(MVm)]
6107 595
G [Ohm] 11298 1149
RQ [Ohm] 28994 2956
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201528
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Summary
bull Production of SSR1 cryomodule has begunndash All bare cavities tested successfullyndash 1st Jacketed cavity tested successfullyndash Prototype coupler and prototype tuner under testingndash All bare solenoids tested successfullyndash Large components received
bull SSR1 cryomodule estimated to be completed in May 2017bull IUAC will deliver (2) SSR1 cavities to FNALbull Design of SSR2 recently changed to address MP
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201529
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Thank13 you13 13
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Backup Slides
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1 Prototypes ndash VTS tests
bull During13 cool13 down13 a13 13 713 hr13 hold13 at13 10013 K13 produced13 a13 large13 Q013 drop13 confirming13 Q13 disease13
bull Subsequently13 baked13 SSR1-shy‐0113 at13 60013 C13 for13 1013 hours13 at13 Jlab13 13 13
bull Effects13 of13 Q13 disease13 should13 not13 appear13 on13 first13 cooldown13
bull X-shy‐rays13 increase13 at13 MP13 barriers13 then13 disappear13 ajer13 punch13 through13 13 13
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25
Q0
Eacc (MVm)
HINS SRR1-01 - Q0 vs Eacc
4K test2K test4K test - post 100K hold
Q-Disease Test
After 100K hold for ~7hrs effects of Q-disease evident along with reappearance of strong MP barriers
Cavity gradient was limited by RF power
in all cases
1E-02
1E-01
1E+00
1E+01
1E+07
1E+08
1E+09
1E+10
1E+11
0 5 10 15 20 25 30 35
Rad
iatio
n (m
Rh
r)
Q0
Eacc (MVm)
HINS SSR1-02 - Q0 vs Eacc
Q 2K Q 4K after 2K runRadiation 2K Radiation 4K after 2K run
Test reuslts for 44K and 2K Tested 332009
Jump thru MP barrier from 24 to 33MVm
MP from ~11-15MVmS10213 ndash13 1st13 test13
S10113 ndash13 4th13 test13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201532
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1 Prototype ndash STC Tests
0
50
100
150
200
250
100E+07
100E+08
100E+09
100E+10
100E+11
0 5 10 15 20 25 30
Xray A
ctivity (microR
em)
Q0
Gradient (MVm)
HINS Jacketed SSR1-01 - Q0 vs EaccQ-Disease Test at 48 K
Q0 - 1st cooldown (normal rate)
Q0 - 3rd cooldown (slow rate)
Xray activity - 1st cooldown
Xray activity - 3rd cooldown
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201533
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
SSR1 Tuner Requirements and databull Introducgton13 bull Assembly13 procedure13 13 bull Meegtng13 the13 technical13 specificagton13 bull Feature13 of13 interest13
Parameter Value Notes Motor Travel at beam pipe gt 025 mm 135540 kHz Piezo Travel at beam pipe gt 185 microm 1540 kHz Maximum Force at beam pipe 7500 N 025 mm 30000 Nmm Motor Resolution at beam pipe lt 37 nm 20540000 mm Motor Tuning Efficiency (Te) lt 37 37100 nm Motor Mechanical Advantage (M) gt 58 75001300 N picked 6 Piezo Tuning Efficiency (Te) gt 12 18515 microm Piezo Mechanical Advantage (M) gt 14 05 75002688 N picked 2 Piezo Elastic Efficiency (E) gt 24 2 12 (Te M)
Parameter Value Notes Stepper motor max force plusmn 1300 N Symmetrical Stepper motor resolution 01 microm (100 nm) At interface with 2nd lever Piezo stroke RT 64 microm plusmn 2 Measured Piezo stroke operating T 15microm (25 of RT) Piezo max rated force 3360-5040 N 4200 N plusmn 20 (blocking force) Piezo max operating force 2688 N 3360 80
Parameter Value Notes Total Frequency Range gt 135 kHz From FRS Frequency Resolution of stepper motor lt 20 Hz From FRS Piezo Frequency Range gt 1 kHz From FRS Tuner Passive spring constant 30 kNmm Derives from dfdP requirement Sensitivity of end-wall 540 kHzmm SimulationExperimental Cavity wall spring constant (Kcav) 30 kNmm SimulationExperimental
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201534
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
ASME Pressure Rating
The table summarizes the results obtained by simulations performed following the Div 2 Part 5 directions It shows that the desired MAWP is achieved both at RT and CT
MAWP13 gt13 213 bar13 at13 293K13 gt13 413 bar13 at13 2K13
ProtecQon13 against13 collapse13 from13 buckling13
uuml (P+D)13 13 13 pcollapse13 =13 134413 bar13 uuml (P+D+T1) 13 13 pcollapse13 =13 132413 bar13 uuml (P+D+T2) 13 13 pcollapse13 13 =13 11213 bar13 uuml (P+D+T1+T2) 13 13 pcollapse13 13 =13 11213 bar13 13
ProtecQon13 against13 cyclic13 loading13
RatcheQng13 uuml There13 is13 no13 plasQc13 deformaQon13 in13 the13
overall13 dimension13 of13 the13 SSR113 resonator13
ProtecQon13 against13 plasQc13 collapse13
uuml GC113 13 pcollapse 13 =13 22313 bar 13 13 RT13 (P+D)13 uuml GC213 13 pcollapse13 13 =13 27813 bar 13 13 RT13 (P+D+T1)13 uuml GC213 13 pcollapse13 13 =13 89713 bar 13 13 CT13 (P+D+T1+T2)13
ProtecQon13 against13 local13 failure13
FaQgue13 Assessment13 uuml No13 faQgue13 analysis13 is13 necessary13
D13 Passarelli13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201535
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536
Jacketing operations
Thermal13 cameras13 inserQon13 tubes13 (above)13
Screenshot13 of13 remote13 connecQon13 from13 FNAL13
Welding13 inch-shy‐by-shy‐inch13 on13 613 mm13 thick13 steel13
Large13 fixtures13 needed13 to13 control13 warping13
D13 Passarelli13 M13 Hassan13 P13 Berrut13
L Ristori - SSR1 SSR2 - P2MAC Meeting 9-10 March 201536