SLAC Magnetic Measurements Date: 04-27-2001 Time: 13:36:17 Project: spear3 Magnet Type: gdipole Magnet Name: production1 Serial Number: Run Number: 7 Measurement Device: single wire Operator: jy Comment: repeat magnetic center measurement after alignment tracked wire position with laser Standardization: 1 cycles from 0.0 A to 770.0 A to 0.0 A Test Currents (A): 583.1 13:36:20 Initial Zero Current Measurement, Imag_zero = 0.0000 A 13:36:20 Magnet current ramping to 15.0000 A... 13:37:15 Magnet current ramping to 770.0000 A... 13:41:18 Magnet current ramping to 0.0000 A... 13:45:26 Magnet current ramping to 583.1340 A... 13:48:41 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:41 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:41 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:41 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:41 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:41 Integrated Field Strength, Average and RMS of Measurements X0 = -0.0500000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = -0.06000000 +- -0.00006000 Tm 13:48:41 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:41 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:41 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:41 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:42 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:42 Integrated Field Strength, Average and RMS of Measurements X0 = -0.0400000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = -0.05000000 +- -0.00005000 Tm 13:48:42 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:42 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:42 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:42 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:42 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:42 Integrated Field Strength, Average and RMS of Measurements X0 = -0.0300000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = -0.04000000 +- -0.00004000 Tm 13:48:43 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:43 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:43 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:43 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:43 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:43 Integrated Field Strength, Average and RMS of Measurements X0 = -0.0200000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = -0.03000000 +- -0.00003000 Tm 13:48:43 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:43 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:43 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:43 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:43 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:44 Integrated Field Strength, Average and RMS of Measurements X0 = -0.0100000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = -0.02000000 +- -0.00002000 Tm 13:48:44 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:44 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:44 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:44 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:44 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:44 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0000000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = -0.01000000 +- -0.00001000 Tm 13:48:44 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:44 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:45 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:45 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:45 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:45 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0100000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = 0.00000000 +- 0.00000000 Tm 13:48:45 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:45 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:45 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:45 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:45 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:46 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0200000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = 0.01000000 +- 0.00001000 Tm 13:48:46 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:46 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:46 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:46 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:46 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:46 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0300000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = 0.02000000 +- 0.00002000 Tm 13:48:47 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:47 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:47 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:47 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:47 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:47 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0400000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = 0.03000000 +- 0.00003000 Tm 13:48:47 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:47 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:47 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:47 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:47 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:48 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0500000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = 0.04000000 +- 0.00004000 Tm 13:48:48 BL vs X Fit Coefficients: Cn sigCn n (Tm/m^n) ----- --------+-------- 0 -0.01000 0.00001 1 1.00000 0.00041 Compute Fit Residuals: X0 BL sigBL BLfit BL-BLfit (m) (Tm) (Tm) (Tm) (Tm) ---------- --------+-------- -------- -------- -0.050000 -0.06000 -0.00006 -0.06000 -0.00000 -0.040000 -0.05000 -0.00005 -0.05000 -0.00000 -0.030000 -0.04000 -0.00004 -0.04000 -0.00000 -0.020000 -0.03000 -0.00003 -0.03000 0.00000 -0.010000 -0.02000 -0.00002 -0.02000 0.00000 0.000000 -0.01000 -0.00001 -0.01000 0.00000 0.010000 0.00000 0.00000 -0.00000 0.00000 0.020000 0.01000 0.00001 0.01000 0.00000 0.030000 0.02000 0.00002 0.02000 0.00000 0.040000 0.03000 0.00003 0.03000 0.00000 0.050000 0.04000 0.00004 0.04000 0.00000 13:48:48 Magnetic center calculation: (The first calculation is from PolyFit, the second is the check.) BL_fit = ( -0.010000 +- 0.000010 Tm) + ( 1.00000 +- 0.00041 Tm/m) * X BL_center = 0.000000 Tm X = 0.01000000 +- 0.00001082 m 13:48:48 Magnetic center calculation: (The first calculation is from PolyFit, the second is the check.) BL_fit = ( -0.010000 +- 0.000000 Tm) + ( 1.00000 +- 0.00000 Tm/m) * X BL_center = 0.000000 Tm X = 0.01000000 +- 0.00000000 m 13:48:48 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:48 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:48 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:49 Magnet Current, Imag = 0.0000 A Vtrans = 0.000000 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 13:48:49 Magnet Current Measurement: Imag = 0.0000 +- 0.0000 A 13:48:49 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0100000 m, dx = 0.0100000 m, Nturns = 0.0 VT = 0.000000000 +- 0.000000000 Vs BL = 0.00000000 +- 0.00000000 Tm 13:48:49 Magnet current ramping to 0.0000 A... 14:14:27 Magnet current ramping to 0.0000 A...