SLAC Magnetic Measurements Date: 08-25-2000 Time: 17:09:46 Project: spear3 Magnet Type: gdipole Magnet Name: proto Serial Number: Run Number: 26 Measurement Device: coil 2 Operator: zw Comment: double coil Standardization: 1 cycles from 0.0 A to 770.0 A to 0.0 A Test Currents (A): 630.0 17:09:57 Initial Zero Current Measurement, Imag_zero = 0.0000 A 17:09:58 Magnet current ramping to 20.0000 A... 17:10:52 Magnet current ramping to 770.0000 A... 17:12:44 Magnet current ramping to 0.0000 A... 17:14:38 Magnet current ramping to 630.0000 A... 17:16:19 Magnet Current, Imag = 635.5500 A Vtrans = 6.355500 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 17:16:21 Magnet Current, Imag = 635.5350 A Vtrans = 6.355350 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 17:16:22 Magnet Current, Imag = 635.5270 A Vtrans = 6.355270 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 17:16:24 Magnet Current, Imag = 635.5080 A Vtrans = 6.355080 V, Factor V/A = 0.010000 V/A, Zero Current = 0.000000 A 17:16:24 Magnet Current Measurement: Imag = 635.5300 +- 0.0151 A 17:17:12 Integrated Voltage Measurement X0 = -0.050000 (m), Delta X = 0.100000 (m), Num_Samp = 200 17:17:48 Integrated Voltage Measurement X0 = 0.050000 (m), Delta X = -0.100000 (m), Num_Samp = 200 17:17:48 BLscan_get_VT just finished a forward and reverse measurement 17:17:48 Polynomial Coefficient Calculation Polynomial Order = 8 Coeff # (Vs) ------- ------------ 0 0.00695 1 0.02714 2 0.00220 3 -0.01475 4 0.00242 5 0.03105 6 -0.00519 7 -0.04800 8 -0.01151 17:17:49 M matrix for the double coil 2.024e+00 0.000e+00 1.072e-01 0.000e+00 5.557e-03 0.000e+00 2.878e-04 0.000e+00 0.000e+00 3.036e+00 0.000e+00 2.681e-01 0.000e+00 1.945e-02 0.000e+00 1.295e-03 0.000e+00 0.000e+00 4.048e+00 0.000e+00 5.362e-01 0.000e+00 5.187e-02 0.000e+00 0.000e+00 0.000e+00 0.000e+00 5.060e+00 0.000e+00 9.384e-01 0.000e+00 1.167e-01 0.000e+00 0.000e+00 0.000e+00 0.000e+00 6.072e+00 0.000e+00 1.501e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 7.084e+00 0.000e+00 2.252e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 8.096e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 9.108e+00 17:17:49 invM matrix 4.941e-01 0.000e+00 -1.309e-02 0.000e+00 7.037e-04 0.000e+00 -6.421e-05 0.000e+00 0.000e+00 3.294e-01 0.000e+00 -1.745e-02 0.000e+00 1.407e-03 0.000e+00 -1.712e-04 0.000e+00 0.000e+00 2.470e-01 0.000e+00 -2.182e-02 0.000e+00 2.463e-03 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.976e-01 0.000e+00 -2.618e-02 0.000e+00 3.941e-03 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.647e-01 0.000e+00 -3.054e-02 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.412e-01 0.000e+00 -3.491e-02 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.235e-01 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.098e-01 17:17:49 BL vs X Polynomial Coefficient Calculation BL(x) = BL1 + BL2*(x/R0) + ... + BLn*(x/R0)^(n-1) (Tm) R0 = 0.050000 m Number of harmonics = 10 Nturns per coil = 400 D1 = 0.011379 D0 = 0.001727 BLn # (Tm) ------- ------------ 1 0.00000 2 0.00000 3 0.01363 4 0.00068 5 -0.00444 6 0.00057 7 0.00658 8 -0.00033 9 -0.00593 10 -0.00126 17:18:25 Integrated Voltage Measurement X0 = -0.050000 (m), Delta X = 0.100000 (m), Num_Samp = 200 17:19:01 Integrated Voltage Measurement X0 = 0.050000 (m), Delta X = -0.100000 (m), Num_Samp = 200 17:19:01 BLscan_get_VT just finished a forward and reverse measurement 17:19:01 Polynomial Coefficient Calculation Polynomial Order = 8 Coeff # (Vs) ------- ------------ 0 0.00696 1 0.02712 2 0.00214 3 -0.01466 4 0.00271 5 0.03085 6 -0.00581 7 -0.04788 8 -0.01115 17:19:01 M matrix for the double coil 2.024e+00 0.000e+00 1.072e-01 0.000e+00 5.557e-03 0.000e+00 2.878e-04 0.000e+00 0.000e+00 3.036e+00 0.000e+00 2.681e-01 0.000e+00 1.945e-02 0.000e+00 1.295e-03 0.000e+00 0.000e+00 4.048e+00 0.000e+00 5.362e-01 0.000e+00 5.187e-02 0.000e+00 0.000e+00 0.000e+00 0.000e+00 5.060e+00 0.000e+00 9.384e-01 0.000e+00 1.167e-01 0.000e+00 0.000e+00 0.000e+00 0.000e+00 6.072e+00 0.000e+00 1.501e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 7.084e+00 0.000e+00 2.252e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 8.096e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 9.108e+00 17:19:01 invM matrix 4.941e-01 0.000e+00 -1.309e-02 0.000e+00 7.037e-04 0.000e+00 -6.421e-05 0.000e+00 0.000e+00 3.294e-01 0.000e+00 -1.745e-02 0.000e+00 1.407e-03 0.000e+00 -1.712e-04 0.000e+00 0.000e+00 2.470e-01 0.000e+00 -2.182e-02 0.000e+00 2.463e-03 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.976e-01 0.000e+00 -2.618e-02 0.000e+00 3.941e-03 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.647e-01 0.000e+00 -3.054e-02 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.412e-01 0.000e+00 -3.491e-02 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.235e-01 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 0.000e+00 1.098e-01 17:19:01 BL vs X Polynomial Coefficient Calculation BL(x) = BL1 + BL2*(x/R0) + ... + BLn*(x/R0)^(n-1) (Tm) R0 = 0.050000 m Number of harmonics = 10 Nturns per coil = 400 D1 = 0.011379 D0 = 0.001727 BLn # (Tm) ------- ------------ 1 0.00000 2 0.00000 3 0.01362 4 0.00065 5 -0.00441 6 0.00064 7 0.00654 8 -0.00043 9 -0.00591 10 -0.00122 17:19:01 Average Polynomial Coefficients Over Several Measurements VT(x) = VT0 + VT1*(x/R0) + ... + VTn*(x/R0)^n (Vs) R0 = 0.050000 m Polynomial Order = 8 VTn_ave VTn_rms # (Vs/m^#) (Vs/m^#) ------- ------------ ------------ 0 0.000000 0.000000 1 0.027130 0.000007 2 0.002168 0.000032 3 -0.014702 0.000044 4 0.002563 0.000147 5 0.030954 0.000101 6 -0.005503 0.000310 7 -0.047941 0.000060 8 -0.011334 0.000181 17:19:01 Average of BLn Polynomial Coefficients Over Several Measurements BL(x) = BL1 + BL2*(x/R0) + ... + BLn*(x/R0)^(n-1) (Tm) R0 = 0.050000 m Number of harmonics = 10 BLn_ave BLn_rms # (Tm) (Tm) ------- ------------ ------------ 1 0.000000 0.000000 2 0.000000 0.000000 3 0.013621 0.000004 4 0.000664 0.000014 5 -0.004425 0.000013 6 0.000606 0.000038 7 0.006562 0.000018 8 -0.000381 0.000050 9 -0.005922 0.000007 10 -0.001244 0.000020 17:19:18 Magnet current ramping to 0.0000 A...