SLAC Magnetic Measurements Date: 05-31-2001 Time: 11:36:05 Project: spear3 Magnet Type: gdipole Magnet Name: 145d-003 Serial Number: Run Number: 10 Measurement Device: stretched wire Operator: jy Comment: mag ctr after alignment tracked magnet Standardization: 1 cycles from 0.0 A to 770.0 A to 0.0 A Test Currents (A): 583.1 Integrated Field Strength vs X Distance the wire was moved = 0.010000 m Number of turns in the wire = 1 Number of measurements for averaging = 4 X0 Imag sigImag BL sigBL (m) (A) (A) (Tm) (Tm) ---------- --------+-------- --------+-------- -0.050000 583.289 0.034 2.08449 0.00130 -0.045000 583.317 0.025 2.06040 0.00134 -0.040000 583.337 0.018 2.03800 0.00097 -0.035000 583.269 0.020 2.01386 0.00071 -0.030000 583.293 0.022 1.99017 0.00118 -0.025000 583.214 0.018 1.96671 0.00061 -0.020000 583.250 0.012 1.94306 0.00059 -0.015000 583.265 0.024 1.92030 0.00081 -0.010000 583.234 0.014 1.89662 0.00134 -0.005000 583.230 0.009 1.87357 0.00037 0.000000 583.249 0.017 1.85039 0.00094 0.005000 583.222 0.009 1.82672 0.00089 0.010000 583.206 0.023 1.80285 0.00059 0.015000 583.214 0.024 1.78004 0.00068 0.020000 583.172 0.010 1.75747 0.00051 0.025000 583.206 0.013 1.73378 0.00067 0.030000 583.199 0.017 1.71032 0.00084 0.035000 583.175 0.013 1.68797 0.00070 0.040000 583.173 0.018 1.66423 0.00054 0.045000 583.164 0.007 1.64072 0.00047 0.050000 583.183 0.023 1.61644 0.00073 The magnetic center is at X = 0.000414 +- 0.000040 m Integrated Strength At The Magnetic Center X0 Imag sigImag BL sigBL (m) (A) (A) (Tm) (Tm) ---------- --------+-------- --------+-------- 0.000414 583.161 0.028 1.84795 0.00042 BL_center = 1.84846 Tm (BL_meas - BL_center)/sigBL = -1.2185