status of the xfel.eu undulator systems - cbp.lbl.gov · status of undulator systems 10 lbl visit...

J. Pflüger, European XFEL

Status of the XFEL.EU Undulator Systems

Status of Undulator Systems

2

LBL Visit Sept 3, 2013 J. Pflueger, European XFEL

Overview

 XFEL.EU Undulator Systems & Controls  Undulator Segments  Serial Production of Undulator Segments:  Representative Results

  Intersections  Summary


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Undulator Systems


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European XFEL Overview

Aerial View

SC Accelerator Dogleg

Switchyard SASE 1

SASE 2

SASE 3 Dumps

Injector

Accelerator Layout

SASE 1- 3 : Undulator Systems

W. Decking

e -

e -

SASE2

SASE2 SASE1/3 Downstream View

Tunnel Installation of SASE2 Undulator System – Final WP71 Deliverables

e -

Intersection 1.1 m

Undulator Segment 5m

Undulator Cell 6.1m

W.Tscheu

Local Control Systems

SASE1/2 SASE3 λ0 [mm] 40 68 Opera2onal Gap Range [mm]

10-‐20 10-‐25

K-‐Range 3.9–1.65 9.0-‐4 Radia2on Wavelength Range [nm]

@ 17.5 GeV 0.147-‐0.040 1.22-‐0.27 @ 14.0 GeV 0.230-‐0.063 1.90-‐0.42 @ 8.5 GeV 0.625-‐0.171 5.17-‐1.15

# of Segments 35 21 System Length [m] 213.5 128.1


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XFEL 2012 User Meeting Jan 23, 2013 J. Pflueger, XFEL

Undulator Control System

  Developed at XFEL.EU   XFEL.EU guidelines & standards   Based exclusively on industrial

Automation Technology   Using the fast EtherCAT protocol   Hardware from Beckhoff GmbH   Running the TwinCAT software   The Topology reflects Hardware

Up to 35 Local Control Systems in Tunnel

Global Control in Computer Service Room

External Access for DOOCS and Experiments

1…. up to 35

S. Karabekyan, A Beckmann, M. Yakopov


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Undulator Segments


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 8

Standard Undulator Segment Support Structure

  Special Attention: 1. Shear deformation and compressive deformation 2. Material pairing / Bimetallic bending 3. Four point support of girders 4. Four Motors, electronic gears 5. Forced girder guiding 6. Precision measurement of gap / Motor feedback to ±1µm, avoiding Abbé errors

 Gap Measurement Accuracy ±1µm


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 9

Magnetics I: Design

  Standard Support System with Standard Interface

  Different Magnet Structures may be adopted

  Same Material for girder and Magnet support structure: AlMg

  Structure is segmented into~ 0.9m long modules + End sections

  Structure is clamped onto the interface


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Production of Undulator Segments   The Focus is on Serial Production. R&D is long ago!!   Industrial Part

  Mechanical Support System including Local Motion Control System: 2 Suppliers

  Magnetic Structure   Documentation in EDMS

  XFEL.EU Part   Integration: Mechanics & Magnetics @ XFEL.EU   Commissioning @XFEL.EU   Magnetic Measurement & Tuning   Preparation for Installation   Documentation in EDMS


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Production Cycle: Industrial Production

July 2012

Dec 2012

Local Control Systems

Magnetic Structuress Mechanical Support Systems

Dec 2012

July 2012

Nov 2012

Nov 2012


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Production @ XFEL.EU in Building 36 3 climatized Magnetic Labs

Incoming Magnetic Structures from VAC

Assembly Area for Magnetic Structures

New Undulator Segments

Segments waiting for Magnetic Measurements

Measured and tuned Segments

2nd Hall with 700m2 for storage

Steps @ XFEL.EU:   Mounting of magnetic

structures   1st Commissioning   Magnetic

Measurements & Tuning

  Preparation for Installation

Schedule:   Total Time ≈ 2 Years

(starting Oct/12)   3 Weeks/Segment !   3 Magnetic Labs

needed running in parallel

  Scheduled End: Oct / End 2014

December 2012


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Results

Magnetic Measurements

U. Englisch, Y. Li, S.Utermann, F. Wolff-Fabris


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Pole Tuning at XFEL Undulator Segments  14

5m

U40: 246 pairs of poles U68: 144 pairs of poles BY and BZ tuning is combined

  No Shims are used

  All errors are tuned by moving Poles

  Bipolar Field Corrections

Tuning Screws

≈± 300µm ≈± 4mrad

Locking Screws


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BY Field: Pole Height Tuning I

-100 -50 0 50 100

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

-1-1-1-1

+1/2 +1+1+1

By[T

]

Z[mm]

Model Field: λ0=50mm, BMax=1T, 4 Periods

+1/21 2 3 4 5 6 7 8 9

λ0/2

"↓$ = &/() ∫+↓$ − ,↓0 /4 ↑+↓$ + ,↓0 /4 ▒/↓0 (+)3+ 

Δ"↓$ = "↓$ − " = &/()  ,↓0 /2 5↓$  5↓$ = ()/& 2/,↓0  Δ"↓$ 

Local K-Tuning

-80 -60 -40 -20 0 20 40 60 80

0,00

0,01

0,02

0,03

Nor

m. S

igna

ture

(T/m

m)

3 41 2

0

-1-2-3-4

X (mm)

FLASH Determination of ai

5↓$ =∑7=−3↑3▒8↓7  9↓$+7  

Local Field Change

Local gap change

Influence of neighbors

Limit to 3 next neighbors ≈± 300µm


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BY Field: Pole Height Tuning II

NiNiNNNN

NjNijijjjj

NNii

NNii

NNii

papapapapaS

papapapapaS

papapapapaSpapapapapaSpapapapapaS

⋅++⋅++⋅+⋅+⋅=

⋅⋅=⋅

⋅⋅=⋅

⋅++⋅++⋅+⋅+⋅=

⋅⋅=⋅

⋅⋅=⋅

⋅++⋅++⋅+⋅+⋅=

⋅++⋅++⋅+⋅+⋅=

⋅++⋅++⋅+⋅+⋅=

−−−−

−−−−−

−−−−

−−−

−−

0332211

332211

333021123

223120112

113221101

........

........

........

.................

Tuned Poles: U40: N =246 U68: N= 144

-80 -60 -40 -20 0 20 40 60 80

0,00

0,01

0,02

0,03

Nor

m. S

igna

ture

(T/m

m)

3 41 2

0

-1-2-3-4

X (mm)

The Characteristic Coefficients ai were measured for U40/U68:   For the 3 poles next to the end ‘End Poles’   For all other poles ‘Bulk Poles’   Tuning done at the ‘Tuning Gap’:

U40: 14mm U68: 16 mm

♦Most Poles need to be tuned ♦ One Tuning Step is (usually) sufficient

Bulk poles


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BZ Field: Pole Tilt

-4000 -3000 -2000 -1000 0 1000 2000 3000 4000

0

50

100

150

200

250

InitialRMS: 64.5 Tmm2

FinalRMS: 2.13 Tmm2

2nd B

z Fie

ld In

tegr

al [T

mm

2 ]

X [mm]

Polygonial ApproximationVertex positions controlled by RMS criterion

U40-X001≈± 4mrad

  BZ is due to errors only.   Ideal BZ trajectory 2nd Field Integral is a Null line   Correction by Tilting Poles

λ0 [mm]

Tuning Gap [mm]

Tilt Kick Signature [Tmm/mrad]

U40 40 14 0.0127

U68 68 16 0.0325


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 18

Pole Tuning: U68-X003-N001 @ Gap=16mm

0 50 100 1506,32

6,34

6,36

6,38

6,40

6,42

6,44

6,46 U68-X003Gap 16mm

Pole Number

Loca

l K-P

aram

eter

Before Tuning After Tuning

-3000 -2000 -1000 0 1000 2000 3000-40

-20

0

20

40 U68-X003Gap 16mm

Before Phase Jitter: 15.6Degree After 2.1Degree

Phas

e Er

ror o

n Po

les

[Deg

ree]

X [mm]

-3000 -2000 -1000 0 1000 2000 3000-400

-300

-200

-100

0

100

200

300U68-X003Gap 16mm

Before RMS = 110 Tmm2

After RMS = 83 Tmm22nd B

Y Fie

ld In

tegr

al [T

mm

2 ]

X [mm]-3000 -2000 -1000 0 1000 2000 3000

-300

-200

-100

0

100

200 U68-X003Gap 16mm

2nd B

Z Fie

ld In

tegr

al [T

mm

2 ]


After RMS = 31 Tmm2

X [mm]


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Another U68: U68-X048

0 20 40 60 80 100 120 1406,30

6,32

6,34

6,36

6,38

6,40

6,42

Loca

l K-P

aram

eter

Pole Number

Before After

U 6 8-X 0 4 8Gap=16 mm

-3000 -2000 -1000 0 1000 2000 3000-30

-25

-20

-15

-10

-5

0

5

10

15

U 6 8-X 0 4 8Gap=16 mm

Phas

e Er

ror o

n Po

les

[°]

Z [mm]

Before After

Phase Jitter:Before: 6.16473 degAfter: 0.83342deg

-3000 -2000 -1000 0 1000 2000 3000-40

-20

0

20

40 U68-X003Gap 16mm

Before Phase Jitter: 15.6Degree After 2.1Degree

Phas

e Er

ror o

n Po

les

[Deg

ree]

X [mm]0 50 100 150

6,32

6,34

6,36

6,38

6,40

6,42

6,44

6,46 U68-X003Gap 16mm

Pole Number

Loca

l K-P

aram

eter



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10 20 30 40 50 60 70 80 901000

2

4

6

8

10

K-Parameter U68X003 U68X004

Gap [mm]

K P

aram

eter

Comparison U68-X003 - U68-X004

Operational Gap Range

0

2

4

6

8

10Phase

U68X003 U68X004

U68-X003 / X004: Comparison of Gap dependent Results

Specs Result

Operational Gap Range [mm]

10-25 ---

B0 @ 10mm Gap [T] 1.69 1.66

K @ 10mm Gap 10.5 9.3

RMS I2Y [Tmm2] < 210 < 90

RMS I2Z [Tmm2] < 100 < 70

Phase Jitter [°] < 8 < 8

10 20 30 40 50 60 70 80900

10

20

30

40

50

60

70

U68-X003 U68-X004



RM

S 2nd

Inte

gral

of B

x [Tm

m2 ]

Gap [mm]

10 20 30 40 50 60 70 80 901000

20

40

60

80

100


U68X003 U68X004


RM

S 2nd

Inte

gral

of B

y [Tm

m2 ]

Gap [mm]

Transverse Overlap

K-Parameter Longitudinal Overlap / Phase Jitter


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 21

Pole Tuning : U40-X044-K004 @ Gap=14mm

0 50 100 150 200 250

2.68

2.70

2.72

2.74

2.76

2.78

2.80 U40-X044Gap 14mm

Pole Number

Loca

l K-P

aram

eter


-3000 -2000 -1000 0 1000 2000 3000

-10

0

10

20

30

40U40-X044Gap 14mm

Before Tuning RMS = 7.4 Degree After Tuning RMS = 2.3 Degree

Phas

e Er

ror o

n Po

les

[Deg

ree]

X [mm]

-3000 -2000 -1000 0 1000 2000 3000

-300

-200

-100

0

100

200 U40-X044Gap 14mm


After RMS = 2.39 Tmm2

2nd B

Z Fie

ld In

tegr

al [T

mm

2 ]

X [mm]-3000 -2000 -1000 0 1000 2000 3000

-300

-200

-100

0

100

200

2nd B

Y Fie

ld In

tegr

al [T

mm

2 ]

U40-X044Gap 14mm


After RMS = 25 Tmm2

X [mm]


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 22

U40-X044 / X004: Comparison of Gap dependent Results

10 20 30 40 50 60 70 80 900.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

K-Parameter U40-X044 U40-X006

Gap [mm]

K P

aram

eter

Comparison U40-X044 U40-X004

Gap Range

2

4

6

8Phase

U40-X044 U40-X006

RM

S Phase Jitter [Degree]

10 20 30 40 50 60 70 80 90100

0

10

20

30

40

U40-X044 U40-X006


RM

S 2nd

Inte

gral

of B

z [Tm

m2 ]

Gap [mm]


10 20 30 40 50 60 70 80 9010010

20

30

40

50

60

70

80

U40-X044 U40-X006

RM

S 2nd

Inte

gral

of B

Y [Tm

m2 ]


Gap [mm]


Specs Result

Operational Gap Range [mm]

10-20 ---

B0 @ 10mm Gap [T] 1.14 1.13

K @ 10mm Gap 4 3.9

RMS I2Y [Tmm2] < 100 < 50

RMS I2Z [Tmm2] < 100 < 40

Phase Jitter [°] < 8 < 7

Transverse Overlap

K-Parameter Longitudinal Overlap / Phase Jitter


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Comparison of Magnetic Results

  Measurement Results be independent of the Bench Comparison of Measurements done at all labs

  Influence of low temperature exposition

Further Plans: Influence of Transport Conditions to Osdorfer Born

10 1000

2

4

6

8

U40-X001 Comparison

XFEL#1: Oct12, hybrid XFEL#2: Sept12, hybrid XFEL#3: Nov12, 3D sensor XFEL#3: Mar13, after

Temperature Test

Pha

se J

itter

(0 )

Gap (mm)

Operational Range

U40_X001_K001

20 0 24 48 72 960

5

10

15

20

Undulatormoved intothe Hall

Start 15.02.13 at 10:00AM

Device 1 Device 2, Channel 1 Device 2, Channel 2

Tem

pera

ture

(0C)

Time (Hours)

Undulator moved outside the Hall

U40_X001 Temperature Shock Test

≈2°C


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Present Status of Production

Status of Undulator Production August 22, 2013  Delivery Status:

•  64 Support Systems •  54 Magnet structures

 Prepared for Measurements: 48  Waiting for magnetic measurements: 10 Segments  Measured, tuned, ready for Installation: 38 Magnetic Length: 190m

 Scheduled End of Production: 12 / 2014


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Intersections


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SASE2 Type Intersection

WP71

Quadrupole Movers

WP71

Phase Shifters

Re-entrant Cavity BPMs+ Electronics

WP17

WP71

Support Bases Adjustors Concrete Pillars

WP71

Air Coil Correctors

Beam Loss Monitors

WP17

WP19

Vacuum System

Status 1/2013:   Delivered: Quadrupoles, WP12   In Production 91 Intersections:

•  Phase Shifters (Nov 12), WP71 •  BPMS, WP17 •  BLMs, WP17 •  Vacuum systems, WP19 •  Air Coil Correctors, WP71 •  Base Plates, WP71 •  Adjustors, WP71 •  Concrete Pillars , WP71 •  Quadrupole Movers, Ciemat

  Released for production: •  Control Cabinets Ciemat (Oct 13)

  Start of Assembly @ XFEL: June 2014

WP12

Quadrupoles


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Phase Shifter Prototypes by IHEP Beijing

Tolerance Band & Operational Range

−  Period length: 55mm −  Gap range: 10.5 to ≈>100mm −  Max. Phase Integral

@ gap 10.5mm : ≥23400 T2mm3 −  1st Hor/Ver Field

Integral Tolerance: ±0.004 Tmm −  Dynamic Operation without retuning! −  2nd Hor/Ver Field

Integral Tolerance: ±67 Tmm2 −  Phase adjustment

accuracy: ± 10° (5°) −  Min. Gap precision for 5/10°

at SASE1/2 ±15/30 µm

H. Lu, S. Sun, C. Wan, IHEP, Beijing

H. Lu, Y. Li, J. Pflueger, NIM A605 (2009),399


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Summary

  Production of Undulator Segments in full Swing   Industrial Production is well in Schedule   Magnetic measurements & Tuning @XFEL.EU

being ramped up   Magnetic Measurements & Tuning:

 Methods and techniques work fine  38 Segments tuned to Specs “Ready for Installation”

  Intersections:   Phase Shifter Prototypes in Specs   All Components are in production

  Production of Undulator Systems in schedule!


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XFEL.EU Undulator Systems Group, WP71

WP71 Status March 3, 2013, left to right: Yufang Yang, Suren Karabekyan, Xiaoyu Li, Georg Deron, Yuhui Li, Bora Ketenoglu, Uwe Englisch, Joachim Pflüger, Andreas Beckmann, Sonia Utermann, Martin Knoll, Majid Bagha-Shanjani, Fredrik Wolff-Fabris, Hongxian Lin, Karl-Heinz Berndgen, not shown: Mikhail Yakopov


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The End


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status of the xfel.eu undulator systems - cbp.lbl.gov · status of undulator systems 10 lbl visit...

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