SLAC Magnetic Measurements Date: 11-28-2001 Time: 15:03:24 Project: spear3 Magnet Type: gdipole Magnet Name: 145d-0001g Serial Number: Run Number: 3 Measurement Device: capacitive sensor Operator: jy Comment: after implementing run 2 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 0.080 0.009 -0.004 -0.029 -0.276 -0.009 0.775 0.067 -0.008 0.001 -0.020 -0.226 -0.019 0.800 0.062 -0.008 -0.013 -0.038 -0.278 -0.019 0.825 0.049 -0.019 -0.021 -0.036 -0.168 -0.020 0.850 0.043 -0.025 -0.006 -0.031 -0.283 -0.012 0.875 0.048 -0.024 0.005 -0.014 -0.208 -0.015 0.900 0.037 -0.031 0.002 -0.022 -0.264 -0.000 0.925 0.051 -0.016 0.006 -0.007 -0.134 0.001 0.950 0.050 -0.022 0.019 -0.002 -0.243 0.010 0.975 0.041 -0.027 0.008 -0.003 -0.113 -0.000 1.000 0.031 -0.036 -0.001 -0.021 -0.230 -0.000 1.025 0.042 -0.031 0.004 -0.004 -0.093 0.011 1.050 0.034 -0.031 -0.004 -0.023 -0.210 0.015 1.075 0.030 -0.032 0.019 0.014 -0.057 0.024 1.100 0.034 -0.033 -0.005 -0.022 -0.182 0.019 1.125 0.031 -0.033 0.027 0.021 -0.068 0.017 1.150 0.029 -0.033 0.015 -0.001 -0.181 0.017 1.175 0.036 -0.028 0.027 0.022 -0.049 0.023 1.200 0.032 -0.034 0.003 -0.011 -0.164 0.030 1.225 0.020 -0.046 0.018 0.015 -0.036 0.035 1.250 0.011 -0.046 0.020 0.009 -0.114 0.048 1.275 0.018 -0.043 0.020 0.019 -0.021 0.044 1.300 0.023 -0.041 0.004 -0.008 -0.126 0.040 1.325 0.011 -0.051 0.010 0.011 0.011 0.040 1.350 0.022 -0.042 0.010 0.000 -0.105 0.036 1.375 0.018 -0.048 0.012 0.015 0.032 0.036 1.400 0.021 -0.042 -0.007 -0.014 -0.080 0.031 1.425 0.016 -0.047 0.016 0.018 0.028 0.025 1.450 0.015 -0.047 0.004 -0.001 -0.054 0.021 1.475 0.015 -0.044 0.008 0.011 0.033 0.009 1.500 0.009 -0.052 0.002 0.003 0.013 0.009 1.525 0.012 -0.049 0.005 0.008 0.029 0.015 1.550 0.011 -0.053 0.006 0.012 0.061 0.014 1.575 0.023 -0.041 -0.016 -0.013 0.039 0.011 1.600 0.019 -0.048 0.007 0.022 0.163 0.031 1.625 0.019 -0.042 -0.014 -0.012 0.031 0.012 1.650 0.017 -0.045 -0.001 0.012 0.141 0.010 1.675 0.027 -0.039 -0.013 -0.009 0.048 0.004 1.700 0.030 -0.032 -0.013 0.002 0.167 0.009 1.725 0.033 -0.034 -0.027 -0.021 0.064 0.001 1.750 0.034 -0.030 -0.011 0.006 0.192 -0.002 1.775 0.026 -0.037 -0.019 -0.012 0.082 0.005 1.800 0.037 -0.031 -0.013 0.007 0.217 -0.007 1.825 0.031 -0.034 -0.024 -0.014 0.111 0.001 1.850 0.037 -0.028 0.000 0.022 0.243 0.006 1.875 0.040 -0.028 -0.012 -0.001 0.126 -0.004 1.900 0.050 -0.023 0.007 0.031 0.262 -0.012 1.925 0.037 -0.027 0.005 0.020 0.162 -0.005 1.950 0.042 -0.024 0.024 0.049 0.276 -0.003 1.975 0.047 -0.019 0.020 0.038 0.197 0.003 2.000 0.036 -0.029 0.048 0.073 0.274 -0.005 2.025 0.039 -0.031 0.044 0.064 0.219 0.010 2.050 0.046 -0.026 0.054 0.076 0.249 0.024 2.800 0.022 -0.002 -0.020 0.001 0.235 -0.097 0.000 -0.000 0.000 0.000 0.000 -0.002 -0.001 Magnet Orientation: Height = 0.005 mm Pitch = 0.006 mrad Roll = -0.009 mrad Twist = 0.406 mrad/m X = 0.011 mm Yaw = 0.002 mrad Required Motions To Bring The Magnet Into Alignment Top View ----------------------- | O --| | y2 | |x2 x2 = -0.3 mils | --| | | | | | | | | +z | | y2 = -0.2 mils ^ |y3 | |-> |O | y3 = -0.2 mils +x | | | | y1 = 0.2 mils | | | | | | | | | --| | y1 | |x1 x1 = -0.2 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