SLAC Magnetic Measurements Date: 05-15-2008 Time: 12:10:57 Program Parameters: Input file directory = S:\MagData\LCLS\Undulator\L143-112000-26\DATASET0001\MECHANICAL MEASUREMENTS\DATA FILES\ Input file name = Sn 26 POLE TIP DATA POINTS 12-FEB-2008.TXT Coordinate system figure file = c:\analysis\insertion device analysis\cmm analysis\coordinate system large.jpg Shim adjustment range in y = 0.000020 m Shim angle = 0.002250 rad Measurement File Header: ! UNDULATOR POLE TIP MEASUREMENT DATA POINTS ! UNDULATOR S/N 26 ! MEASUREMENT DATE : 12-FEB-2008 ! ! POLE TIP - POLE TIP NUMBER ! INC ANG - INCLUDED ANGLE BETWEEN TOP AND BOTTOM POLE TIPS (MRAD) ! SYM ANG - ANLGLE OF SYMMETRY AXIS BETWEEN POLE TIPS WITH ZX PLANE OF EVALUATION CSY (MRAD) ! MID PNT - MID POINT BETWEEN TOP AND BOTTOM POLE TIPS AT X = 0(YZ PLANE) (MM) ! POLE GAP - DISTANCE BETWEEN TOP AND BOTTOM POLE TIPS AT X = 0 (YZ PLANE)(MM) ! TOP AT X=0 - POINT ON TOP POLE TIP AT X = 0 (MM) ! BTM AT X=0 - POINT ON BOTTOM POLE TIP AT X = 0 (MM) ! BTM X FACE - POINT ON X FACE OF BOTTOM POLE TIP 10MM BELOW Y CENTERLINE (MM) ! TOP X FACE - POINT ON X FACE OF TOP POLE TIP 10MM ABOVE Y CENTERLINE (MM) ! ! ! !-------------------------------------------------------------------------------------- !POLE | INC | SYM | MID | POLE | TOP AT | BTM AT | BTM X | TOP X | ! TIP | ANG | ANG | PNT | GAP | X = 0 | X = 0 | FACE | FACE | !-------------------------------------------------------------------------------------- ----- CMM Mechanical Measurements Summary ----- Cant Angle: Average = 0.072335 mrad, RMS = 0.080999 mrad Midline Angle: Average = 0.298288 deg, RMS = 0.009792 deg Y Position Of The Gap Center: Average = -0.024892 mm, RMS = 0.022434 mm Min = -0.067500 mm, Max = 0.025500 mm Range = 0.093000 mm Gap Height: Average = 6.887916 mm, RMS = 0.011955 mm Min = 6.859500 mm, Max = 6.922800 mm Range = 0.063300 mm Y Position Of The Upper Pole: Average = -3.468842 mm, RMS = 0.021072 mm Min = -3.506500 mm, Max = -3.411300 mm Range = 0.095200 mm Y Position Of The Lower Pole: Average = 3.419062 mm, RMS = 0.025176 mm Min = 3.368500 mm, Max = 3.476000 mm Range = 0.107500 mm X Position Of The Upper Pole: Average = -21.995553 mm, RMS = 0.050159 mm Min = -22.156000 mm, Max = -21.899000 mm Range = 0.257000 mm X Position Of The Lower Pole: Average = -22.032779 mm, RMS = 0.063103 mm Min = -22.176000 mm, Max = -21.799000 mm Range = 0.377000 mm Set The Gap To The Average Y Position, Replace Shims Shim Mag Del Yctr Up Shim Lo Shim | Shim Mag Del Yctr Up Shim Lo Shim # # (micron) (micron) (micron) | # # (micron) (micron) (micron) ---- ---- -------- -------- -------- | ---- ---- -------- -------- -------- 1 1 -54 60 -60 | 32 113 29 -20 20 2 2 -50 40 -40 | 33 120 34 -40 40 3 6 -38 40 -40 | 34 121 34 -40 40 4 7 -36 40 -40 | 35 128 31 -40 40 5 11 -31 40 -40 | 36 129 30 -20 20 6 12 -32 40 -40 | 37 136 33 -40 40 7 14 -34 40 -40 | 38 137 34 -40 40 8 21 -35 40 -40 | 39 145 35 -40 40 9 22 -34 40 -40 | 40 146 32 -40 40 10 29 -28 20 -20 | 41 148 24 -20 20 11 30 -27 20 -20 | 42 155 12 -20 20 12 37 -21 20 -20 | 43 156 12 -20 20 13 38 -20 20 -20 | 44 163 6 0 0 14 45 -10 0 0 | 45 164 6 0 0 15 46 -9 0 0 | 46 171 5 0 0 16 53 -12 20 -20 | 47 172 5 0 0 17 54 -13 20 -20 | 48 179 2 0 0 18 61 -9 0 0 | 49 180 1 0 0 19 62 -8 0 0 | 50 187 -3 0 0 20 69 0 0 0 | 51 188 -4 0 0 21 70 1 0 0 | 52 195 -10 0 0 22 78 10 0 0 | 53 196 -10 0 0 23 79 10 0 0 | 54 203 -4 0 0 24 81 8 0 0 | 55 204 -3 0 0 25 88 10 0 0 | 56 212 -5 0 0 26 90 12 -20 20 | 57 213 -7 0 0 27 96 16 -20 20 | 58 215 -13 20 -20 28 97 16 -20 20 | 59 219 -27 20 -20 29 104 27 -20 20 | 60 220 -29 20 -20 30 105 28 -20 20 | 61 224 -36 40 -40 31 112 29 -20 20 | 62 225 -36 40 -40 Set The Gap To The Average Y Position, Adjust Shims After Replacement Shim Mag Del Yctr Del X Up Del X Lo | Shim Mag Del Yctr Del X Up Del X Lo # # (micron) (mm) (mm) | # # (micron) (mm) (mm) ---- ---- -------- -------- -------- | ---- ---- -------- -------- -------- 1 1 6 2.843 -2.843 | 32 113 9 4.047 -4.047 2 2 -10 -4.255 4.255 | 33 120 -6 -2.800 2.800 3 6 2 1.068 -1.068 | 34 121 -6 -2.694 2.694 4 7 4 1.939 -1.939 | 35 128 -9 -4.073 4.073 5 11 9 3.885 -3.885 | 36 129 10 4.399 -4.399 6 12 8 3.584 -3.584 | 37 136 -7 -3.162 3.162 7 14 6 2.829 -2.829 | 38 137 -6 -2.887 2.887 8 21 5 2.257 -2.257 | 39 145 -5 -2.293 2.293 9 22 6 2.579 -2.579 | 40 146 -8 -3.627 3.627 10 29 -8 -3.516 3.516 | 41 148 4 1.936 -1.936 11 30 -7 -3.119 3.119 | 42 155 -8 -3.650 3.650 12 37 -1 -0.475 0.475 | 43 156 -8 -3.677 3.677 13 38 -0 -0.092 0.092 | 44 163 6 2.777 -2.777 14 45 -10 -4.397 4.397 | 45 164 6 2.670 -2.670 15 46 -9 -3.882 3.882 | 46 171 5 2.228 -2.228 16 53 8 3.507 -3.507 | 47 172 5 2.231 -2.231 17 54 7 3.171 -3.171 | 48 179 2 0.830 -0.830 18 61 -9 -3.993 3.993 | 49 180 1 0.548 -0.548 19 62 -8 -3.405 3.405 | 50 187 -3 -1.319 1.319 20 69 0 0.165 -0.165 | 51 188 -4 -1.699 1.699 21 70 1 0.427 -0.427 | 52 195 -10 -4.328 4.328 22 78 10 4.309 -4.309 | 53 196 -10 -4.312 4.312 23 79 10 4.323 -4.323 | 54 203 -4 -1.636 1.636 24 81 8 3.720 -3.720 | 55 204 -3 -1.463 1.463 25 88 10 4.322 -4.322 | 56 212 -5 -2.383 2.383 26 90 -8 -3.753 3.753 | 57 213 -7 -3.170 3.170 27 96 -4 -1.941 1.941 | 58 215 7 2.927 -2.927 28 97 -4 -1.823 1.823 | 59 219 -7 -3.140 3.140 29 104 7 2.897 -2.897 | 60 220 -9 -4.189 4.189 30 105 8 3.648 -3.648 | 61 224 4 1.944 -1.944 31 112 9 4.093 -4.093 | 62 225 4 1.616 -1.616