SLAC Magnetic Measurements Date: 04-24-2001 Time: 15:25:32 Project: spear3 Magnet Type: gdipole Magnet Name: production1 Serial Number: 145D-1-001 Run Number: 4 Measurement Device: capacitive sensors Operator: jy Comment: after implementing run 3 Magnet Gap Measurements vs Z Z Gap Out Gap In HeightO HeightI Roll X (m) (mm) (mm) (mm) (mm) (mrad) (mm) ------- ------- ------- ------- ------- ------- ------- 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.750 0.075 0.005 0.009 -0.003 -0.138 -0.041 0.775 0.045 -0.021 0.010 -0.009 -0.208 -0.040 0.800 0.047 -0.021 0.003 -0.013 -0.171 -0.043 0.825 0.033 -0.027 0.005 -0.008 -0.143 -0.039 0.850 0.031 -0.033 0.005 -0.011 -0.188 -0.038 0.875 0.027 -0.041 0.018 0.002 -0.176 -0.037 0.900 0.030 -0.034 0.020 0.004 -0.183 -0.022 0.925 0.033 -0.026 0.011 0.003 -0.086 -0.021 0.950 0.042 -0.025 0.016 -0.000 -0.181 -0.021 0.975 0.026 -0.037 0.022 0.016 -0.066 -0.022 1.000 0.017 -0.045 0.019 0.004 -0.166 -0.022 1.025 0.027 -0.039 0.010 0.004 -0.065 -0.011 1.050 0.022 -0.038 0.002 -0.013 -0.165 -0.006 1.075 0.014 -0.043 0.038 0.037 -0.014 0.001 1.100 0.018 -0.047 0.018 0.003 -0.158 0.001 1.125 0.011 -0.048 0.041 0.039 -0.027 -0.003 1.150 0.016 -0.042 0.029 0.015 -0.150 -0.005 1.175 0.020 -0.042 0.038 0.036 -0.020 0.000 1.200 0.017 -0.043 0.016 0.004 -0.135 0.010 1.225 0.005 -0.054 0.030 0.029 -0.012 0.013 1.250 -0.013 -0.065 0.042 0.035 -0.082 0.038 1.275 0.005 -0.051 0.032 0.031 -0.007 0.024 1.300 0.006 -0.053 0.013 0.003 -0.109 0.019 1.325 -0.002 -0.060 0.016 0.017 0.015 0.019 1.350 0.003 -0.055 0.015 0.008 -0.080 0.016 1.375 0.005 -0.053 0.018 0.021 0.024 0.015 1.400 0.006 -0.052 -0.003 -0.010 -0.078 0.010 1.425 0.000 -0.056 0.021 0.024 0.031 0.004 1.450 0.007 -0.050 0.001 -0.005 -0.071 -0.002 1.475 0.004 -0.051 0.016 0.022 0.060 -0.012 1.500 -0.007 -0.064 0.000 -0.002 -0.026 -0.011 1.525 -0.007 -0.062 0.012 0.019 0.080 -0.003 1.550 -0.004 -0.063 -0.005 -0.006 -0.011 -0.008 1.575 0.010 -0.047 -0.004 0.003 0.078 -0.008 1.600 0.006 -0.055 -0.004 0.001 0.057 0.001 1.625 0.007 -0.050 -0.014 -0.010 0.048 -0.007 1.650 0.008 -0.053 -0.004 0.003 0.080 -0.012 1.675 0.017 -0.044 -0.013 -0.007 0.070 0.001 1.700 0.018 -0.042 -0.012 -0.001 0.123 -0.006 1.725 0.029 -0.036 -0.032 -0.028 0.040 -0.019 1.750 0.023 -0.037 -0.018 -0.005 0.147 -0.021 1.775 0.015 -0.045 -0.020 -0.016 0.052 -0.017 1.800 0.017 -0.047 -0.013 0.003 0.179 -0.020 1.825 0.017 -0.043 -0.030 -0.024 0.062 -0.014 1.850 0.023 -0.038 -0.009 0.008 0.191 -0.013 1.875 0.027 -0.037 -0.013 -0.006 0.082 -0.023 1.900 0.036 -0.031 -0.005 0.014 0.208 -0.029 1.925 0.021 -0.033 -0.008 0.002 0.105 -0.020 1.950 0.034 -0.032 0.011 0.031 0.222 -0.018 1.975 0.035 -0.029 0.004 0.017 0.139 -0.019 2.000 0.023 -0.038 0.031 0.051 0.223 -0.025 2.025 0.029 -0.035 0.027 0.038 0.128 -0.013 2.050 0.031 -0.035 0.046 0.068 0.236 0.015 2.800 0.025 0.003 -0.076 -0.069 0.072 -0.085 0.000 0.000 0.001 -0.001 -0.001 -0.005 -0.000 Magnet Orientation: Height = 0.009 mm Pitch = -0.018 mrad Roll = -0.004 mrad Twist = 0.297 mrad/m X = -0.010 mm Yaw = 0.007 mrad Required Motions To Bring The Magnet Into Alignment Top View ----------------------- | O --| | y2 | |x2 x2 = 0.3 mils | --| | | | | | | | | +z | | y2 = 0.3 mils ^ |y3 | |-> |O | y3 = -0.3 mils +x | | | | y1 = -0.8 mils | | | | | | | | | --| | y1 | |x1 x1 = 0.6 mils | O --| ----------------------- Gap Side Back Side +x is to the right in the figure +y is up +z is to the top of the figure