SLAC Magnetic Measurements Date: 07-17-2001 Time: 10:05:08 Project: spear3 Magnet Type: gdipole Magnet Name: 145d-014 Serial Number: Run Number: 1 Measurement Device: capacitive sensor Operator: jy Comment: first setof magnet 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 0.086 -0.005 -0.471 -0.535 -0.708 0.329 0.775 0.095 0.004 -0.457 -0.516 -0.651 0.312 0.800 0.089 0.001 -0.453 -0.518 -0.725 0.307 0.825 0.085 0.001 -0.429 -0.486 -0.636 0.301 0.850 0.094 0.000 -0.416 -0.479 -0.699 0.296 0.875 0.086 -0.009 -0.388 -0.441 -0.599 0.298 0.900 0.086 -0.004 -0.384 -0.447 -0.705 0.303 0.925 0.092 0.001 -0.363 -0.416 -0.595 0.301 0.950 0.079 -0.015 -0.347 -0.411 -0.721 0.299 0.975 0.074 -0.006 -0.326 -0.379 -0.595 0.293 1.000 0.080 -0.010 -0.324 -0.386 -0.692 0.285 1.025 0.080 -0.005 -0.295 -0.348 -0.591 0.291 1.050 0.082 -0.005 -0.283 -0.346 -0.697 0.295 1.075 0.077 -0.006 -0.258 -0.312 -0.601 0.296 1.100 0.070 -0.010 -0.246 -0.308 -0.692 0.295 1.125 0.073 -0.009 -0.216 -0.272 -0.619 0.288 1.150 0.060 -0.017 -0.207 -0.267 -0.663 0.288 1.175 0.061 -0.019 -0.188 -0.247 -0.657 0.287 1.200 0.063 -0.019 -0.176 -0.237 -0.673 0.291 1.225 0.050 -0.027 -0.161 -0.221 -0.671 0.294 1.250 0.054 -0.024 -0.133 -0.190 -0.627 0.295 1.275 0.048 -0.027 -0.132 -0.195 -0.706 0.300 1.300 0.050 -0.025 -0.113 -0.167 -0.604 0.297 1.325 0.043 -0.023 -0.095 -0.162 -0.747 0.290 1.350 0.056 -0.019 -0.063 -0.119 -0.620 0.276 1.375 0.048 -0.029 -0.047 -0.113 -0.736 0.267 1.400 0.044 -0.035 -0.017 -0.074 -0.629 0.270 1.425 0.054 -0.023 -0.017 -0.083 -0.737 0.249 1.450 0.051 -0.024 0.020 -0.037 -0.627 0.240 1.475 0.048 -0.026 0.037 -0.027 -0.720 0.238 1.500 0.047 -0.028 0.071 0.012 -0.647 0.232 1.525 0.045 -0.026 0.079 0.013 -0.734 0.235 1.550 0.053 -0.017 0.104 0.049 -0.610 0.234 1.575 0.043 -0.029 0.120 0.051 -0.763 0.236 1.600 0.057 -0.022 0.148 0.090 -0.643 0.226 1.625 0.049 -0.027 0.148 0.084 -0.717 0.221 1.650 0.045 -0.031 0.182 0.120 -0.683 0.223 1.675 0.045 -0.029 0.204 0.142 -0.685 0.216 1.700 0.044 -0.029 0.204 0.140 -0.716 0.219 1.725 0.037 -0.024 0.233 0.184 -0.546 0.205 1.750 0.049 -0.022 0.232 0.166 -0.728 0.198 1.775 0.056 -0.022 0.285 0.230 -0.621 0.196 1.800 0.060 -0.013 0.282 0.216 -0.730 0.192 1.825 0.063 -0.012 0.318 0.263 -0.613 0.194 1.850 0.067 -0.013 0.323 0.258 -0.732 0.189 1.875 0.071 -0.013 0.367 0.312 -0.610 0.181 1.900 0.063 -0.014 0.376 0.311 -0.724 0.182 1.925 0.071 -0.011 0.419 0.364 -0.612 0.181 1.950 0.083 -0.003 0.421 0.355 -0.731 0.176 1.975 0.079 -0.003 0.474 0.417 -0.634 0.172 2.000 0.078 -0.004 0.468 0.399 -0.771 0.172 2.025 0.071 -0.010 0.512 0.454 -0.638 0.180 2.050 0.052 -0.025 0.560 0.496 -0.711 0.211 2.800 0.021 -0.002 -0.070 -0.059 0.122 -0.104 0.000 1.383 1.607 -0.095 -0.042 0.593 0.732 Magnet Orientation: Height = -0.008 mm Pitch = 0.770 mrad Roll = -0.671 mrad Twist = -0.020 mrad/m X = 0.252 mm Yaw = -0.118 mrad Required Motions To Bring The Magnet Into Alignment Top View ----------------------- | O --| | y2 | |x2 x2 = 3.4 mils | --| | | | | | | | | +z | | y2 = -9.5 mils ^ |y3 | |-> |O | y3 = 0.3 mils +x | | | | y1 = 35.9 mils | | | | | | | | | --| | y1 | |x1 x1 = -2.4 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