measurements of special sss during production n. catalan lasheras
DESCRIPTION
Measurements of Special SSS during production N. Catalan Lasheras Review of the Tests of Superconducting Magnets in SM18 14 January 2005. Layout of Special SSS Dashboard Measurements in factories Measurements in Bloc 4 Measurements of completed cold masses in 181 Problems with MQY - PowerPoint PPT PresentationTRANSCRIPT
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Measurements of Special SSS during production
N. Catalan Lasheras
Review of the Tests of Superconducting Magnets in SM18
14 January 2005
• Layout of Special SSS• Dashboard• Measurements in factories• Measurements in Bloc 4• Measurements of completed cold masses in 181• Problems with MQY• Requirements for cold mass production
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Layout of Special SSS
Special SSS in the matching sections (MS) and dispersion suppressors (DS)
From Q4 to Q10 (Q11) in the lattice
There are 82 special SSS of MQM type (+ 32 of MQ/MQTL type)
31 cold mass types in 46 cryostat types
Magnets are individually powered and tunable by aperture
Matching section magnets are is stand-alone cryostats at 4.5 K
Cold masses are assembled at CERN in 181 and cryostated in 904
Classified by length and number of supports
Q7 IR4 LMQMA/B
Q4/Q5 IR6 / Q5/Q6 IR4 LMQYA/B/H/K/L
Q8/Q10 LMQMC/D/O/P
Q5/Q6 IR1/5 LMQMM/N
Q9 IR6 LMQMH/IQ/R
Q4 IR1/5 LMQYC/D
Q7 IR1,2,5,8 LMQME/F/G
Q6 IR2,8 LMQMJ/K
Q6 IR3,7 LMQTI/J
Q5 R2/L8 LMQML
Q4 IR2,8 / Q5 L2/R8 LMQYE/F/YI/J
lg = 11345mm
lg = 10390mm
lg = 8985mm
lg = 8010mm
lg = 6610mm
lg = 5335mm
8 2 8 24 4 12 8 4 4 6 2
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Dashboard
Three SSSS tested in 2004 (but need retesting - lack of 120 A DCF)
Average production rate is 1 cold mass per week
Assuming cryostating follows, 40 new SSSS to be tested in 2005 (+11 from 2004 + retest)
Installation of sector 7-8 foreseen for July 2005 (7+7 units) followed by sector 8-1 (7 units)
0
10
20
30
40
50
60
70
80
90
1-Jan-03 1-Jan-04 31-Dec-04 31-Dec-05 31-Dec-06
Inse
rtio
n qu
adru
pole
col
d m
asse
s
Assembly Finishing Delivery Just in time
Q10 Q9 Q8 Q7 Q6 Q5 Q4 Q4 Q5 Q6 Q7 Q8 Q9 Q10
1 LMQMD615 LMQMH616 LMQMD617 LMQMF618 LMQMM619 LMQMN620 LMQMF618 LMQYD622 LMQMN623 LMQMM624 LMQME625 LMQMD626 LMQMH627 LMQMD628
2 LMQMD665 LMQMH666 LMQMD667 LMQMF668 LMQMK669 LMQYF670 LMQYJ671 LMQYI672 LMQML673 LMQMJ674 LMQME675 LMQMD676 LMQMH677 LMQMD678
3 LMQTI679 LMQTJ680
4 LMQMC629 LMQMI630 LMQMC631 LMQMB632 LMQYA633 LMQYH634 LMQYH635 LMQYB636 LMQMA637 LMQMD638 LMQMH603 LMQMD640
5 LMQMD641 LMQMH642 LMQMD643 LMQMG644 LMQMN645 LMQMM646 LMQYC647 LMQYD648 LMQMN649 LMQMM650 LMQMF651 LMQMD652 LMQMH653 LMQMD654
6 LMQMP655 LMQMQ656 LMQMD657 LMQYK658 LMQYL659 LMQYK660 LMQYL661 LMQMC662 LMQMR663 LMQMO664
7 LMQTI681 LMQTJ682
8 LMQMD601 LMQMH639 LMQMD602 LMQMF604 LMQMJ605 LMQML606 LMQYJ607 LMQYI608 LMQYE609 LMQMJ610 LMQME611 LMQMD612 LMQMH613 LMQMD614
14 masses froides finies11 masses froides en cours d'assemblage6 masses froides en prévision avec au moins un aimant affecté
Left right
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Measurements in factories
Warm magnetic measurements done at Tesla (MQM) and ACCEL (MQY) for acceptance of individual magnets
Manual QIMM system used (MTM)
Transfer function, harmonics, Lmag, angle and axes
Reproducibility (according to available data): 0.1 unit when using the same mole
Measurements used to sort magnets whenever possible
Position Position 1 Position 2 Position 3 Position 4 Integrales
Cn (mT) 0.003465 0.005010 0.005012 0.002569 0.012040
Angle(Hor,Cn)-0.3551 -1.6854 0.890345 2.0881 -8.566136
b1 -7.2095E+1 2.6186E+0 4.5252E+1 3.8114E+0 -4.300083E-3
b2 1.0000E+4 1.0000E+4 1.0000E+4 1.0000E+4 1.000000E+4
b3 -3.5540E+0 -7.2239E-1 -1.6950E-1 -2.1586E+0 -1.783902E+0
b4 6.5234E-1 8.2320E-1 -4.3679E-3 -8.6476E-1 -2.578170E-1
b5 2.2593E-1 2.2235E-1 2.4203E-1 2.0765E-1 4.506600E-1
b6 1.5147E+1 1.9849E+0 1.3651E+0 7.2193E+0 5.469398E+0
b7 -1.2984E-1 -5.2724E-2 7.4807E-2 -2.8986E-1 -9.229790E-2
b8 3.8631E-2 1.2260E-1 6.8421E-2 3.9389E-2 -7.424144E-2
b9 -6.6120E-3 -1.7679E-2 -3.2482E-2 3.2836E-2 -1.079832E-2
b10 3.6768E-1 4.0248E-1 3.9164E-1 6.7406E-1 4.350598E-1
b11 -2.3022E-2 -1.3808E-2 -1.5428E-2 -5.2806E-2 -2.066003E-2
b12 6.5070E-2 8.2603E-2 6.6785E-2 5.3602E-2 -6.924371E-2
b13 -2.1604E-2 2.9042E-2 4.9475E-2 6.6433E-2 1.742100E-1
b14 3.8840E-1 5.0084E-1 4.9524E-1 4.2674E-1 4.629716E-1
b15 -3.7056E-3 7.0343E-3 3.1045E-3 3.3125E-3 -1.363824E-2
a1 7.2194E+1 5.9142E+1 2.8878E-1 -2.1320E+2 -5.242834E-3
a2 -7.1020E+0 -3.3709E+1 1.7806E+1 4.1762E+1 0.000000E+0
a3 -1.9020E+0 -2.2171E+0 -1.6057E+0 -1.1275E+0 1.390744E+0
a4 -1.5766E+0 -1.7091E+0 -2.7254E+0 -1.6204E+0 1.983593E+0
a5 -8.8159E-1 -5.8712E-2 -2.6178E-1 -1.0021E+0 2.268952E-1
a6 -8.5317E-1 1.6356E-1 2.3876E-1 2.6415E-2 -5.461886E-2
a7 -2.0480E-1 -7.7972E-2 -3.6716E-2 -7.6967E-2 6.751521E-2
a8 -9.0030E-2 -1.7536E-1 -2.1665E-1 -1.5196E-1 1.660998E-1
a9 -4.0097E-2 9.7951E-2 3.5441E-2 -1.3858E-1 -1.182650E-2
a10 2.0030E-1 -3.4329E-2 2.2934E-2 3.1125E-2 4.460877E-2
a11 -2.0685E-2 -1.2220E-2 -2.5259E-2 -2.8124E-2 2.254553E-2
a12 1.8944E-2 1.2814E-2 1.7353E-2 2.2805E-2 -1.714518E-2
a13 -1.0596E-1 -1.4674E-1 -1.9271E-1 -2.8368E-1 3.045370E-2
a14 -4.2634E-2 -2.3749E-2 1.1877E-2 3.0361E-2 -8.106328E-3
a15 -1.6638E-2 -8.5354E-3 -1.1887E-2 -2.2954E-2 -2.892621E-3
Temp taupe(deg)
Niv init(mrad)
Dx moy (mm) 1.2265E-4 0.0000E+0 -7.6930E-5 0.0000E+0 1.7596E-4
Dy moy (mm) -1.2264E-4 -1.0055E-4 0.0000E+0 3.6246E-4 -7.3532E-4
C2 centre (mT) 0.005011 Long. Mag. (m) 2.402825
WMM Harmonics
-1.0
0.0
1.0
2.0
3.0
4.0
5.0
un
its
MQML_CC_029
MQML_CC_029 -0.0 -0.1 0.17 4.36 0.07 -0.0 0.05 0.06 0.01 0.00 -0.0 0.48 -0.0 -0.3 0.05 -0.3 0.18 -0.1 -0.1 0.01 0.03 -0.0 -0.0 -0.1 -0.0 -0.0
b3 b4 b5 b6 b7 b8 b9 b10 b11 b12 b13 b14 b15 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15
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Measurements in Bloc 4
Cold tests of individual magnets done in Bloc 4 in a vertical cryostat
Power tests done on 25 MQMC, MQM and MQY magnets (of 43 received)
Not possible for MQML magnets due to the cryostat length (qualification of two pre-series done in SM18)
Load line and body cold magnetic measurements only for a few quadrupoles
Preliminary warm-cold correlations to validate the use of WMM for checking AP requirements
Hysteresis and decay in the pre-series. Not extensive
4000
4500
5000
5500
6000
6500
Cu
rren
t [A
mp
s]
Nominal current
Ultimate current
MQ
MC
01
MQ
MC
02
MQ
M_0
1
MQ
M_0
7
MQ
M_0
4
MQ
M_0
2
MQ
MC
04
MQ
MC
06
MQ
MC
08
MQ
M_1
2
MQ
M_1
3
MQ
MC
09
MQ
MC
10
MQ
M_1
5
MQ
M_1
4
MQ
M_0
3
c6 multipole in MQM magnets
0
2
4
6
8
10
12
14
0 2 4 6 8 10 12 14Cold
Wa
rm
Block 4 Tesla
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Measurements of completed cold masses in 181
Measurements done on finished cold masses (no fiducialization)
Geometry and axis measured with the mole-laser tracker (verified by the measurements of the first Q9 in SM18 in December 2004)
Warm magnetic measurements on MQM, MQY,MCBC, MCBY with QIMM system (polarity, integral strength, harmonics, mechanical angle and relative magnetic axis)
Magnetic measurements confirm the assembly and reproduce factory data
Possibility of absolute magnetic axis and angle measurements with AC mole studied
Not possible for Q4, Q5 cold masses containing two MQY magnets (PS limited)
Courtesy of N. Smirnov
SSS603 Ap#2 (V2) magnetic (average MQM&MQMC deviation --> 0) and geometric (RST frame?) axes in X
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000
Y[mm]
X[m
m]
x_magn_V2
X_fit_V2
X_geom_V2
MQMC MQM
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Problems with MQY
High transfer function from magnet MQY09 on
Warm magnetic measurements also show a drift in b6 multipole
Permeability of collars found to be outside specifications at low fields as for MQs (not observed in MQM production)
WMM are done at low current (3 A) due to QIMM PS limitations
Collared coil #23 (MQY12) assembled using high permeability collars
Gradient of MQY production
-40.0
-20.0
0.0
20.0
40.0
60.0
80.0
100.0
b2
[un
its]
44.333 44.314 44.314 44.333 44.333 44.314 44.314 44.314 44.353 44.373 44.373 44.431 44.431 44.490 44.333 44.333 44.706 44.353 44.314 44.314 44.333 44.3333.439 3.439 3.449 3.441 3.441 3.440 3.440 3.441 3.441 3.440 3.443 3.439 3.442 3.437 3.440 3.441 3.437 3.439 3.441 3.442 3.442 3.438-2.08 -1.90 -1.95 -2.10 -1.49 -1.83 -1.65 -2.07 -2.04 -2.11 -2.00 -2.00 -1.63 -1.82 -1.51 -1.66 -1.76 -1.78 -3.10 -3.39 -3.11 -3.24
1.919 -1.345 1.386 -0.130 0.001 -2.233 0.489 0.156 -0.160 0.106 2.974 -0.638 -1.746 0.758 -0.647 0.811 -0.097 -0.903 -1.132 -0.407 -0.153 1.4410.121 0.199 0.148 0.037 0.034 0.259 -0.257 0.092 -0.047 0.229 0.114 0.098 -0.485 -0.207 -0.113 -0.060 -0.063 0.015 0.282 0.120 -0.247 0.080
-0.249 0.104 -0.093 -0.179 0.021 0.120 -0.032 0.066 0.095 0.019 -0.321 -0.087 0.156 -0.095 0.054 -0.147 -0.340 -0.020 0.083 0.030 0.085 0.0701.026 1.039 1.272 1.132 1.417 1.181 1.338 1.413 1.241 1.219 0.928 0.889 0.615 0.553 1.269 1.354 -0.460 1.167 1.292 1.305 1.254 1.2670.021 0.009 0.046 0.006 -0.004 0.014 0.025 0.017 -0.032 0.015 -0.045 -0.053 -0.023 -0.027 0.033 -0.001 -0.019 0.039 0.011 -0.006 -0.040 -0.004
-0.009 0.002 0.003 0.014 0.002 0.004 0.020 0.011 0.004 0.009 -0.005 -0.002 0.005 0.019 -0.002 -0.004 0.009 -0.003 -0.006 0.010 0.001 -0.002-0.008 -0.008 -0.003 -0.014 0.001 -0.010 0.006 -0.003 0.007 -0.007 0.005 -0.011 0.003 0.001 -0.014 -0.005 0.000 -0.011 -0.012 0.000 -0.008 -0.001-0.367 -0.363 -0.361 -0.355 -0.361 -0.361 -0.357 -0.357 -0.351 -0.341 -0.302 -0.299 -0.327 -0.319 -0.348 -0.340 -0.278 -0.348 -0.349 -0.342 -0.346 -0.3380.001 0.003 0.000 -0.003 -0.004 -0.001 -0.002 -0.003 -0.003 0.000 -0.009 -0.013 0.004 -0.003 -0.001 -0.001 0.002 0.000 -0.005 -0.003 -0.003 0.0000.000 -0.001 0.002 0.000 0.001 0.001 0.000 0.000 0.000 0.000 -0.002 -0.003 0.001 0.001 0.002 0.001 0.000 0.003 0.001 0.000 0.003 0.002
-0.002 -0.002 -0.004 -0.003 -0.002 -0.003 -0.002 -0.002 -0.003 -0.004 -0.001 0.000 0.000 0.000 -0.002 -0.002 -0.003 -0.002 -0.003 -0.004 0.001 -0.0020.022 0.024 0.025 0.021 0.023 0.023 0.023 0.022 0.021 0.021 0.024 0.023 0.022 0.022 0.023 0.021 0.022 0.024 0.023 0.020 0.023 0.0210.000 -0.001 -0.001 -0.001 0.000 -0.001 -0.001 0.000 0.000 0.000 0.000 0.000 0.001 0.000 -0.001 -0.001 -0.002 -0.001 -0.001 0.000 -0.001 -0.001
0.094 -0.024 0.876 0.582 1.394 0.004 -0.077 0.181 -0.127 -1.038 -0.328 1.110 -1.309 2.671 -0.024 -0.442 -0.039 0.259 0.531 0.095 2.204 -1.894-0.069 -0.025 0.133 -0.575 -0.074 0.320 -0.131 -0.322 -0.160 -0.062 0.039 -0.161 -0.590 0.103 0.439 -0.215 0.421 -0.354 -0.149 0.172 -0.052 0.0410.030 -0.277 0.082 -0.128 -0.185 -0.071 -0.118 -0.059 -0.076 -0.222 -0.111 0.076 -0.428 0.203 -0.081 -0.066 -0.033 -0.063 -0.114 -0.127 -0.037 -0.243
-0.215 -0.227 -0.221 -0.250 -0.181 -0.150 -0.140 -0.196 -0.176 -0.188 -0.107 -0.188 -0.129 -0.093 -0.155 -0.130 -0.088 -0.157 -0.065 -0.111 -0.112 -0.025-0.045 0.001 0.025 0.004 0.005 -0.006 -0.023 0.011 -0.007 0.074 0.006 0.004 0.045 -0.113 0.030 -0.022 0.015 0.014 0.044 0.009 -0.100 -0.0290.032 -0.025 0.020 -0.020 0.013 0.058 -0.005 -0.027 0.000 0.015 0.004 -0.026 -0.024 -0.009 0.023 -0.010 0.011 -0.005 0.004 0.003 -0.010 0.012
-0.005 -0.002 -0.002 0.000 0.004 0.007 -0.009 -0.003 0.002 0.008 0.012 0.008 0.002 -0.033 -0.001 -0.007 0.007 -0.005 0.001 -0.008 -0.009 -0.0100.010 0.013 0.001 0.001 0.010 0.010 0.011 0.001 0.000 0.006 0.006 -0.001 0.002 0.009 0.007 0.011 0.013 0.008 0.013 0.005 0.008 0.0180.002 0.001 0.003 -0.004 0.001 0.000 0.004 0.004 0.003 0.006 0.005 0.003 0.000 0.006 0.003 0.002 -0.003 0.006 0.002 0.004 -0.001 0.0030.001 -0.001 0.000 -0.003 0.001 0.000 0.001 -0.002 -0.001 0.002 -0.001 -0.003 -0.003 0.002 0.003 -0.001 -0.003 0.002 0.000 -0.001 -0.001 0.000
-0.005 -0.005 -0.005 -0.004 -0.006 -0.006 -0.006 -0.006 -0.007 -0.006 -0.006 -0.007 -0.005 -0.008 -0.007 -0.008 -0.005 -0.009 -0.009 -0.007 -0.009 -0.011-0.002 -0.001 -0.001 -0.001 -0.003 -0.003 -0.001 0.000 -0.001 -0.002 -0.003 0.000 0.000 0.000 -0.001 -0.001 0.000 0.000 -0.001 0.000 -0.001 -0.004-0.001 0.000 0.000 -0.001 0.000 0.000 0.001 0.001 0.001 0.000 0.000 0.000 0.001 0.001 0.001 0.000 0.000 0.000 0.001 0.001 -0.001 0.001
0.130.02 0.300.07 0.00 0.150.190.15 0.34 0.42-0.17
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Problems with MQY
If the problem is permeability it should disappear at high field
Verified in MQY12 in Bloc 4: b6 changes from -1.3 u at 3 A to +1.5 u at 2.5kA. Effect of permeability at 300 A (injection current) is about 0.1unit.
Creates large random errors in low order multipoles due to low fields
Prevents meaningful warm-cold correlations
About 40% of the production concerned (10 out of 26 magnets)
Permeability of collars vs. B (from measurement data)
1
1.005
1.01
1.015
1.02
1.025
1.03
1.035
1.04
0 1 2 3 4 5 6 7 8B(T)
W-C correlation for MQY12-AP23
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
b3 b4 b5 b6 b7 b8 b9 b10 a3 a4 a5 a6 a7 a8 a9 a1
0u
nits
ACCEL WMM Bloc4 CMM
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Requirements for cold mass production
Power tests of MQM, MQMC and MQY to continue in Bloc 4 at top rate.
Cold magnetic measurements of MQY are necessary for sorting magnets in cold masses:
– All remaining MQY must be measured with integral coil (load line and harmonics). (New integral coil available in Bloc 4 from January 2005).
Warm-cold correlation of MQM and MQMC to be confirmed in Bloc 4.
Dynamic effects, cross-talk studies on a few MQM and MQY magnets in Bloc 4.
Follow-up of production, warm-cold correlations (and dynamic effects) in MQML to be established in SM18.
Cold masses already assembled and for which no reliable data is available should be measured in SM18 (SSS607 and 608 - Q48L, Q48R, …).
Verification of CM shape at cold on a few units (1 per type).