SLAC Magnetic Measurements Date: 09-24-2019 Time: 14:05:00 Project: LCLS-II Magnet Type: Dipole Magnet Name: 4551 Serial Number: BCXXL2 Run Number: 2 Measurement Device: 10wire Operator: sda Comment: Integrated field at 20 amps. Standardization for MAIN: 3 cycles from -20.0 A to 20.0 A to -20.0 A Test Currents for MAIN (A): 20.00 14:05:33 Position moved: 0.000000 m 14:05:51 Magnet Current for MAIN, Imag = 0.0005 A Vtrans = 0.000039 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000000 A 14:05:51 Magnet Current for MAIN, Imag = 0.0005 A Vtrans = 0.000038 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000000 A 14:05:52 Magnet Current for MAIN, Imag = 0.0005 A Vtrans = 0.000038 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000000 A 14:05:53 Magnet Current for MAIN, Imag = 0.0005 A Vtrans = 0.000038 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000000 A 14:05:53 Magnet Avgerage Current Measurement for MAIN : Imag = 0.0005 +- 0.0000 A 14:06:20 Initial Zero Current Measurement for MAIN, Imag_zero = 0.000458433 A 14:06:20 Ambient Measurement Device(s) Being Used, type = None 14:06:20 Magnet Voltage Measurement Device(s) Being Used, type = HP34970 14:06:21 Temperature Measurement Device(s) Being Used, type = HPTHERM_HP34970 14:06:21 XMAG Device(s) Being Used, type = None 14:06:21 Ambient Measurement Device(s) Being Used, type = None 14:06:21 Magnet system MAIN current ramping to 20.0000 A... 14:06:41 Magnet system MAIN current ramping to -20.0000 A... 14:07:12 Magnet system MAIN current ramping to 20.0000 A... 14:07:42 Magnet system MAIN current ramping to -20.0000 A... 14:08:12 Magnet system MAIN current ramping to 20.0000 A... 14:08:43 Magnet system MAIN current ramping to -20.0000 A... 14:09:16 Position moved: 0.000000 m 14:09:19 Magnet system MAIN current ramping to 20.0000 A... 14:09:50 Magnet Current for MAIN, Imag = 20.0040 A Vtrans = 1.667040 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:09:50 MAIN (V) Voltage Measurement, V = 11.214625 V 14:09:51 Temperature Measurement, Probe Number = 0, T = 37.980000 C 14:09:52 Temperature Measurement, Probe Number = 1, T = 36.731000 C 14:09:52 Temperature Measurement, Probe Number = 2, T = 36.865000 C 14:09:53 Temperature Measurement, Probe Number = 3, T = 29.978000 C 14:09:53 Magnet Test Parameter Measurements P0 = MAIN, Value = 20.00 P1 = MAIN (V), Value = 11.21 P2 = Top Coil (C), Value = 37.98 P3 = Bottom Coil (C), Value = 36.73 P4 = Steel (C), Value = 36.87 P5 = Ambient Temp (C), Value = 29.98 14:09:53 Magnetic Field Measurement Measuring the magnet strength... 14:09:53 Integrated Voltage Measurement... 14:09:54 Magnet Current for MAIN, Imag = 20.0041 A Vtrans = 1.667050 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:10:03 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012294134 Vs 14:10:11 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012331068 Vs 14:10:11 Magnet Current for MAIN, Imag = 20.0043 A Vtrans = 1.667063 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:10:19 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012312178 Vs 14:10:27 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012334617 Vs 14:10:28 Magnet Current for MAIN, Imag = 20.0044 A Vtrans = 1.667074 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:10:35 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012290327 Vs 14:10:43 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012320111 Vs 14:10:44 Magnet Current for MAIN, Imag = 20.0046 A Vtrans = 1.667087 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:10:52 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012292385 Vs 14:11:00 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012338850 Vs 14:11:01 Magnet Current for MAIN, Imag = 20.0047 A Vtrans = 1.667096 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:11:08 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012288761 Vs 14:11:16 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012341941 Vs 14:11:16 Integrated Voltage Average and RMS of Measurements X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012314437 +- 0.000005846 Vs 14:11:16 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0000000 m, dx = 0.0040000 m, Nturns = 10.0 VT = 0.012314437 +- 0.000005846 Vs BL = 0.30786093 +- 0.00014614 Tm 14:11:20 Position moved: 0.000000 m 14:11:20 BL vs X Fit Coefficients: Cn sigCn n (Tm/m^n) ----- --------+-------- 0 0.30786 0.00015 Compute Fit Residuals: X0 BL sigBL BLfit BL-BLfit (m) (Tm) (Tm) (Tm) (Tm) ----------- --------+-------- -------- -------- 0.0000000 0.30786 0.00015 0.30786 0.00000 14:11:20 Magnet Strength Calculation Harmonic Number = 1 Number Of X0 Positions = 1 X0 BL sigBL (m) (Tm) (Tm) -------- --------+-------- 0.0000 0.30786 0.00015 SL = 0.3078609 +- 0.0001461 Tm^2/m^n 14:11:20 Magnet Strength Measurement Harmonic Number = 1 SL = 0.3078609 +- 0.0001461 Tm^2/m^n Remeasure 14:11:20 Magnetic Field Measurement Measuring the magnet strength... 14:11:20 Integrated Voltage Measurement... 14:11:21 Magnet Current for MAIN, Imag = 20.0048 A Vtrans = 1.667107 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:11:30 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012305009 Vs 14:11:38 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012335632 Vs 14:11:38 Magnet Current for MAIN, Imag = 20.0049 A Vtrans = 1.667109 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:11:46 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012296188 Vs 14:11:54 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012338446 Vs 14:11:55 Magnet Current for MAIN, Imag = 20.0049 A Vtrans = 1.667111 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:12:03 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012292339 Vs 14:12:11 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012330365 Vs 14:12:11 Magnet Current for MAIN, Imag = 20.0050 A Vtrans = 1.667120 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:12:19 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012305544 Vs 14:12:27 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012325548 Vs 14:12:28 Magnet Current for MAIN, Imag = 20.0049 A Vtrans = 1.667113 V, Factor V/A = 0.083333 V/A, Zero Current = 0.000458 A 14:12:35 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012308220 Vs 14:12:43 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0040000 m VT = -0.012318097 Vs 14:12:43 Integrated Voltage Average and RMS of Measurements X0 = 0.0000000 m, Delta X = 0.0040000 m VT = 0.012315539 +- 0.000003137 Vs 14:12:43 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0000000 m, dx = 0.0040000 m, Nturns = 10.0 VT = 0.012315539 +- 0.000003137 Vs BL = 0.30788847 +- 0.00007844 Tm 14:12:47 Position moved: 0.000000 m 14:12:47 BL vs X Fit Coefficients: Cn sigCn n (Tm/m^n) ----- --------+-------- 0 0.30789 0.00008 Compute Fit Residuals: X0 BL sigBL BLfit BL-BLfit (m) (Tm) (Tm) (Tm) (Tm) ----------- --------+-------- -------- -------- 0.0000000 0.30789 0.00008 0.30789 0.00000 14:12:47 Magnet Strength Calculation Harmonic Number = 1 Number Of X0 Positions = 1 X0 BL sigBL (m) (Tm) (Tm) -------- --------+-------- 0.0000 0.30789 0.00008 SL = 0.3078885 +- 0.0000784 Tm^2/m^n 14:12:47 Magnet Strength Measurement Harmonic Number = 1 SL = 0.3078885 +- 0.0000784 Tm^2/m^n 14:12:50 Position moved: 0.000000 m 14:12:53 Position moved: 0.000000 m 14:12:56 Magnet system MAIN current ramping to 0.0000 A...