SLAC Magnetic Measurements Date: 05-28-2026 Time: 16:16:44 Project: LCLS-II Magnet Type: Quad Magnet Name: 4213 Serial Number: Run Number: 2 Measurement Device: 1DQSB26 Operator: sda Comment: Integrated gradient vs current from 0-165-0 A. Harmonics at 20, 40, 80 & 165 A Standardization for MAIN: 3 cycles from 0.0 A to 165.0 A to 0.0 A Test Currents for MAIN (A): 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 110.00 120.00 130.00 140.00 150.00 160.00 165.00 160.00 140.00 120.00 100.00 80.00 60.00 40.00 20.00 16.00 12.00 8.00 4.00 2.00 0.00 Field Harmonics Data (on the following pages) Field Harmonics Magnet Current for MAIN = 20.18 +- 0.007031 A Harmonics given at R = 0.012745 m Coil Radius, Rcoil = 0.012745 m Main Harmonic N = 2 n BLn sigBLn THspole sigTH BLn/BLN sBLn/BLN (Tm) (Tm) (deg) (deg) (%) (%) --- ------------+------------ --------+-------- -------------+------------- 1 6.4711e-05 4.1901e-08 79.25 0.14 0.79050994 0.00051188 2 8.1860e-03 4.2950e-08 44.69 0.00 100.00000000 0.00074199 3 4.8655e-06 7.7739e-08 -31.45 0.98 0.05943681 0.00094965 4 1.8633e-07 7.3012e-08 -29.59 8.04 0.00227614 0.00089191 5 2.2162e-07 4.8833e-08 -26.61 2.64 0.00270726 0.00059654 6 4.6241e-07 2.4126e-08 -17.34 0.98 0.00564880 0.00029473 7 8.8828e-08 4.2327e-08 -15.48 5.12 0.00108511 0.00051707 8 2.5409e-08 5.2367e-09 10.52 11.95 0.00031039 0.00006397 9 6.3853e-08 1.7842e-08 -8.30 1.77 0.00078003 0.00021795 10 7.3096e-07 1.4738e-08 -8.09 0.32 0.00892941 0.00018004 11 2.0952e-08 3.3188e-08 -10.56 13.29 0.00025595 0.00040543 12 2.7416e-08 2.5367e-08 2.53 4.00 0.00033491 0.00030988 13 4.3178e-08 3.4775e-08 -5.12 3.89 0.00052746 0.00042481 14 2.5798e-08 3.8949e-08 -1.93 4.75 0.00031514 0.00047580 15 4.8703e-08 1.8825e-08 -4.71 3.48 0.00059495 0.00022996 16 2.8175e-08 6.3728e-08 -1.96 7.90 0.00034418 0.00077849 Magnetic Center: Xcenter = -0.00009918 +- 0.00000005 m Ycenter = -0.00001770 +- 0.00000024 m View from upstream end of magnet y ^ | N S -> x S N Field Harmonics Magnet Current for MAIN = 40.16 +- 0.005406 A Harmonics given at R = 0.012745 m Coil Radius, Rcoil = 0.012745 m Main Harmonic N = 2 n BLn sigBLn THspole sigTH BLn/BLN sBLn/BLN (Tm) (Tm) (deg) (deg) (%) (%) --- ------------+------------ --------+-------- -------------+------------- 1 1.3040e-04 6.3374e-08 85.12 0.04 0.80467349 0.00039108 2 1.6205e-02 2.5494e-08 44.69 0.00 100.00000000 0.00022249 3 8.5693e-06 5.1056e-08 -31.62 0.28 0.05288116 0.00031507 4 2.6515e-07 6.8779e-08 -31.34 4.48 0.00163624 0.00042443 5 4.2032e-07 2.7373e-08 -26.70 0.77 0.00259381 0.00016892 6 8.4039e-07 2.8799e-08 -17.40 0.28 0.00518601 0.00017772 7 1.3801e-07 2.8595e-08 -13.76 1.67 0.00085164 0.00017646 8 6.1956e-08 1.7283e-08 9.56 2.24 0.00038233 0.00010665 9 7.6544e-08 2.7639e-08 -11.19 1.99 0.00047235 0.00017056 10 1.4076e-06 2.8408e-08 -8.33 0.16 0.00868650 0.00017530 11 2.9716e-08 2.5590e-08 4.89 5.97 0.00018338 0.00015791 12 2.0183e-08 2.9397e-08 11.44 6.91 0.00012455 0.00018141 13 7.9006e-09 1.7501e-08 -5.68 20.28 0.00004875 0.00010800 14 2.3971e-08 5.3475e-08 -3.34 9.54 0.00014792 0.00033000 15 5.4369e-08 2.3509e-08 7.84 2.39 0.00033551 0.00014507 16 5.4963e-09 3.4442e-08 0.21 34.63 0.00003392 0.00021254 Magnetic Center: Xcenter = -0.00010227 +- 0.00000005 m Ycenter = -0.00000761 +- 0.00000007 m View from upstream end of magnet y ^ | N S -> x S N Field Harmonics Magnet Current for MAIN = 80.12 +- 0.003396 A Harmonics given at R = 0.012745 m Coil Radius, Rcoil = 0.012745 m Main Harmonic N = 2 n BLn sigBLn THspole sigTH BLn/BLN sBLn/BLN (Tm) (Tm) (deg) (deg) (%) (%) --- ------------+------------ --------+-------- -------------+------------- 1 2.5830e-04 6.1781e-08 87.71 0.02 0.79929182 0.00019121 2 3.2316e-02 1.3485e-07 44.69 0.00 100.00000000 0.00059013 3 1.6688e-05 9.6818e-08 -32.29 0.28 0.05163987 0.00029960 4 4.8819e-07 8.3042e-08 -36.36 2.35 0.00151069 0.00025697 5 8.9540e-07 6.1117e-08 -27.54 0.72 0.00277079 0.00018912 6 1.5928e-06 2.8214e-08 -17.58 0.19 0.00492880 0.00008731 7 3.1305e-07 1.2106e-08 -15.01 0.81 0.00096871 0.00003746 8 7.8791e-08 2.5128e-08 8.31 3.54 0.00024382 0.00007776 9 2.0438e-07 3.7750e-08 -9.88 1.17 0.00063246 0.00011681 10 2.8756e-06 1.8597e-08 -8.36 0.04 0.00889837 0.00005755 11 2.0170e-08 4.8142e-08 15.32 4.42 0.00006242 0.00014897 12 3.6555e-08 3.5458e-08 -11.26 4.61 0.00011312 0.00010972 13 4.0700e-08 3.7442e-08 -10.22 4.02 0.00012595 0.00011586 14 1.0055e-07 2.7335e-08 -7.28 1.66 0.00031115 0.00008459 15 3.4439e-08 5.4529e-08 -9.27 6.02 0.00010657 0.00016874 16 9.1062e-08 7.0817e-08 -8.80 3.05 0.00028179 0.00021914 Magnetic Center: Xcenter = -0.00010182 +- 0.00000002 m Ycenter = -0.00000296 +- 0.00000004 m View from upstream end of magnet y ^ | N S -> x S N Field Harmonics Magnet Current for MAIN = 165.03 +- 0.005286 A Harmonics given at R = 0.012745 m Coil Radius, Rcoil = 0.012745 m Main Harmonic N = 2 n BLn sigBLn THspole sigTH BLn/BLN sBLn/BLN (Tm) (Tm) (deg) (deg) (%) (%) --- ------------+------------ --------+-------- -------------+------------- 1 5.1080e-04 2.3628e-07 86.86 0.06 0.76927114 0.00035584 2 6.6401e-02 1.1825e-07 44.69 0.00 100.00000000 0.00025184 3 3.6201e-05 5.0575e-08 -32.40 0.07 0.05451893 0.00007617 4 8.2570e-07 3.7415e-08 43.48 0.42 0.00124351 0.00005635 5 1.7819e-06 3.5916e-08 -26.24 0.26 0.00268355 0.00005409 6 3.2975e-06 4.4248e-08 -17.36 0.10 0.00496609 0.00006664 7 6.2307e-07 1.4481e-08 -14.50 0.28 0.00093835 0.00002181 8 2.3448e-07 2.9871e-08 6.13 0.87 0.00035313 0.00004499 9 4.2311e-07 8.9614e-09 -9.09 0.23 0.00063721 0.00001350 10 5.8898e-06 2.1784e-08 -8.35 0.02 0.00887009 0.00003281 11 2.2600e-08 2.7971e-08 7.16 4.13 0.00003404 0.00004212 12 2.7176e-08 3.0106e-08 4.15 4.88 0.00004093 0.00004534 13 3.5895e-08 3.3448e-08 -2.51 3.65 0.00005406 0.00005037 14 1.6529e-07 2.7916e-08 -5.47 1.01 0.00024893 0.00004204 15 3.5141e-08 1.6880e-08 11.74 2.56 0.00005292 0.00002542 16 1.1129e-08 6.6673e-08 10.20 17.47 0.00001676 0.00010041 Magnetic Center: Xcenter = -0.00009795 +- 0.00000005 m Ycenter = -0.00000429 +- 0.00000010 m View from upstream end of magnet y ^ | N S -> x S N