SLAC Magnetic Measurements Date: 03-13-2001 Time: 11:20:09 Project: spear3 Magnet Type: gdipole Magnet Name: proto_test_stand Serial Number: Run Number: 12 Measurement Device: gap system Operator: zw Comment: Repeat run 11 after two days Magnet Gap Measurements vs Z Z Gap Out Gap In HeightO HeightI Roll X (m) (mm) (mm) (mm) (mm) (mrad) (mm) ------- ------- ------- ------- ------- ------- ------- 0.000 57.000 45.000 0.000 0.000 0.000 0.000 0.725 56.997 44.942 -0.040 -0.034 0.069 0.063 0.750 57.035 44.959 -0.041 -0.027 0.150 0.044 0.775 57.058 44.988 -0.073 -0.070 0.033 0.026 0.800 57.051 44.977 -0.077 -0.068 0.098 0.022 0.825 57.046 44.977 -0.075 -0.073 0.023 0.022 0.850 57.041 44.975 -0.070 -0.064 0.061 0.028 0.875 57.049 44.981 -0.059 -0.057 0.023 0.031 0.900 57.053 44.985 -0.063 -0.057 0.069 0.041 0.925 57.054 44.983 -0.061 -0.058 0.035 0.050 0.950 57.046 44.980 -0.061 -0.060 0.017 0.059 0.975 57.044 44.980 -0.062 -0.062 0.001 0.064 1.000 57.053 44.984 -0.060 -0.061 -0.012 0.060 1.025 57.051 44.977 -0.073 -0.068 0.057 0.062 1.050 57.039 44.977 -0.076 -0.078 -0.019 0.058 1.075 57.041 44.976 -0.083 -0.080 0.042 0.046 1.100 57.048 44.983 -0.086 -0.089 -0.038 0.026 1.125 57.042 44.974 -0.082 -0.077 0.064 0.019 1.150 57.018 44.967 -0.078 -0.080 -0.031 0.016 1.175 57.033 44.970 -0.081 -0.075 0.065 0.010 1.200 57.037 44.973 -0.084 -0.087 -0.038 0.013 1.225 57.030 44.967 -0.086 -0.080 0.062 0.018 1.250 57.027 44.964 -0.089 -0.094 -0.050 0.025 1.275 57.026 44.965 -0.076 -0.072 0.045 0.033 1.300 57.025 44.968 -0.086 -0.092 -0.066 0.032 1.325 57.025 44.963 -0.078 -0.073 0.056 0.038 1.350 57.006 44.958 -0.089 -0.094 -0.051 0.045 1.375 57.012 44.955 -0.092 -0.087 0.053 0.037 1.400 57.009 44.952 -0.092 -0.097 -0.062 0.038 1.425 57.012 44.953 -0.089 -0.085 0.040 0.027 1.450 57.015 44.951 -0.093 -0.097 -0.042 0.022 1.475 57.020 44.957 -0.070 -0.065 0.048 0.021 1.500 57.023 44.963 -0.085 -0.091 -0.071 0.020 1.525 57.029 44.967 -0.063 -0.058 0.063 0.020 1.550 57.025 44.962 -0.083 -0.089 -0.069 0.020 1.575 57.027 44.963 -0.068 -0.065 0.033 0.016 1.600 57.034 44.971 -0.077 -0.082 -0.062 0.010 1.625 57.037 44.975 -0.070 -0.065 0.053 0.004 1.650 57.041 44.974 -0.089 -0.094 -0.047 -0.006 1.675 57.010 44.963 -0.119 -0.112 0.074 0.004 1.700 57.048 44.979 -0.099 -0.103 -0.043 -0.017 1.725 57.030 44.971 -0.112 -0.106 0.072 -0.008 1.750 57.054 44.983 -0.089 -0.094 -0.054 -0.011 1.775 57.028 44.975 -0.087 -0.081 0.062 0.011 1.800 57.035 44.970 -0.085 -0.087 -0.019 0.014 1.825 57.037 44.973 -0.068 -0.061 0.082 0.016 1.850 57.056 44.988 -0.081 -0.085 -0.046 0.021 1.875 57.032 44.976 -0.067 -0.059 0.085 0.037 1.900 57.058 44.984 -0.061 -0.063 -0.017 0.027 1.925 57.037 44.971 -0.051 -0.043 0.085 0.027 1.950 57.046 44.977 -0.071 -0.072 -0.016 0.029 1.975 57.055 44.976 -0.053 -0.049 0.036 0.044 2.000 57.054 44.981 -0.035 -0.040 -0.046 0.027 2.025 57.036 44.966 -0.063 -0.056 0.070 0.017 2.050 57.013 44.945 0.040 0.046 0.059 0.147 2.800 57.056 45.016 0.121 0.131 0.113 -0.011 0.000 57.000 45.000 0.007 0.007 0.007 -0.000 Magnet Orientation: Height = -0.073 mm Pitch = 0.004 mrad Roll = 0.018 mrad Twist = -0.023 mrad/m X = 0.029 mm Yaw = -0.013 mrad Required Motions To Bring The Magnet Into Alignment Top View ----------------------- | O --| | y2 | |x2 x2 = -1.1 mils | --| | | | | | | | | +z | | y2 = 2.4 mils ^ |y3 | |-> |O | y3 = 2.9 mils +x | | | | y1 = 2.6 mils | | | | | | | | | --| | y1 | |x1 x1 = -1.8 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