SLAC Magnetic Measurements Date: 07-17-2001 Time: 13:57:03 Project: spear3 Magnet Type: gdipole Magnet Name: 145d-014 Serial Number: Run Number: 7 Measurement Device: stretched wire Operator: jy Comment: BL vs. I, main Standardization: 1 cycles from 0.0 A to 770.0 A to 0.0 A Test Currents (A): 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 450.0 500.0 525.0 550.0 575.0 600.0 625.0 650.0 675.0 700.0 650.0 600.0 550.0 500.0 450.0 400.0 13:57:13 Initial Zero Current Measurement, Imag_zero = 0.0000 A 13:57:13 Magnet current ramping to 15.0000 A... 13:57:44 Magnet current ramping to 770.0000 A... 14:02:02 Magnet current ramping to 0.0000 A... 14:06:54 Magnet current ramping to 50.0000 A... 14:07:18 Magnet Current, Imag = -0.0012 A Vtrans = -0.000012 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:07:20 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:07:22 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:07:24 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:07:24 Magnet Current Measurement: Imag = -0.0011 +- 0.0000 A 14:07:24 Magnetic Field Measurement Measuring the magnet strength... 14:07:24 Integrated Voltage Measurement... 14:07:38 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0100000 m VT = -0.000023726 Vs 14:07:48 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0100000 m VT = 0.000019304 Vs 14:07:59 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0100000 m VT = -0.000024374 Vs 14:08:10 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0100000 m VT = 0.000018885 Vs 14:08:20 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0100000 m VT = -0.000024668 Vs 14:08:31 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0100000 m VT = 0.000018984 Vs 14:08:42 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0100000 m VT = -0.000024678 Vs 14:08:53 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0100000 m VT = 0.000019353 Vs 14:08:53 Integrated Voltage Average and RMS of Measurements X0 = 0.0000000 m, Delta X = 0.0100000 m VT = -0.000021747 +- 0.000000191 Vs 14:08:53 Integrated Field Strength, Average and RMS of Measurements X0 = 0.0000000 m, dx = 0.0100000 m, Nturns = 1.0 VT = -0.000021747 +- 0.000000191 Vs BL = -0.00217466 +- 0.00001911 Tm 14:08:56 BL vs X Fit Coefficients: Cn sigCn n (Tm/m^n) ----- --------+-------- 0 -0.00217 0.00002 Compute Fit Residuals: X0 BL sigBL BLfit BL-BLfit (m) (Tm) (Tm) (Tm) (Tm) ---------- --------+-------- -------- -------- 0.000000 -0.00217 0.00002 -0.00217 0.00000 14:08:56 Magnet Strength Calculation Harmonic Number = 1 Number Of X0 Positions = 1 X0 BL sigBL (m) (Tm) (Tm) -------- --------+-------- 0.0000 -0.00217 0.00002 SL = -0.0021747 +- 0.0000191 Tm^2/m^n 14:08:56 Magnet Strength Measurement Harmonic Number = 1 SL = -0.0021747 +- 0.0000191 Tm^2/m^n 14:08:58 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:09:00 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:09:02 Magnet Current, Imag = -0.0010 A Vtrans = -0.000010 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:09:04 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:09:04 Magnet Current Measurement: Imag = -0.0011 +- 0.0000 A 14:09:04 Magnet current ramping to 100.0000 A... 14:09:28 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:09:30 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:09:32 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:09:34 Magnet Current, Imag = -0.0011 A Vtrans = -0.000011 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 14:09:34 Magnet Current Measurement: Imag = -0.0011 +- 0.0000 A 14:09:34 Magnetic Field Measurement Measuring the magnet strength... 14:09:34 Integrated Voltage Measurement... 14:09:47 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0100000 m VT = -0.000024870 Vs 14:09:58 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0100000 m VT = 0.000018273 Vs 14:10:09 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0100000 m VT = -0.000024885 Vs 14:10:19 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0100000 m VT = 0.000017823 Vs 14:10:30 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = 0.0100000 m VT = -0.000025187 Vs 14:10:41 Integrated Voltage Measurement X0 = 0.0000000 m, Delta X = -0.0100000 m VT = 0.000018178 Vs