Content
Optical measurements
- 2013-12-20-Quad-MEC-Metrology.xlsx - file with optical measurements from Gabriel
- 2013-12-20-Quad-MEC-Metrology.txt - text version of the same file
- 2013-12-20-Quad-MEC-Metrology-corr.txt - corrected file (see next section for details)
This time metrology file has all coordinates in mm (milimeters with rounding up to 10 um...
Quality check
Quality check table for original metrology file
pair: S1 S2 dS1 dS2 L1 L2 dL1 dL2 <dS/L> angle(deg) D1 D2 dD d(dS) d(dL) dz3(um) Quad 0 pair: 0 20910 20910 -180 -180 43550 43540 90 80 -0.00413 -0.23684 48304 48306 -2 0 10 99.997 pair: 1 20920 20920 -200 -200 43560 43630 10 80 -0.00459 -0.26285 48309 48401 -92 0 -70 100.033 pair: 2 20910 20100 10 820 43550 43540 10 0 0.00011 0.00658 47960 48305 -345 -810 10 1724.336 pair: 3 20910 20900 -140 -130 43540 43530 -60 -70 -0.00310 -0.17767 48294 48294 0 -10 10 9.995 pair: 4 20900 20910 -220 -210 43540 43550 90 100 -0.00494 -0.28289 48296 48311 -15 -10 -10 -69.579 pair: 5 20920 20900 40 20 43200 43550 -20 330 0.00069 0.03968 48304 47999 305 20 -350 34.059 pair: 6 20910 20910 -130 -130 43530 43540 -70 -60 -0.00299 -0.17109 48294 48298 -4 0 -10 0.002 pair: 7 20910 20909 -130 -129 43540 43540 -60 -60 -0.00297 -0.17041 48302 48298 4 -1 0 -30.000
Applied corrections
- pair 1: Correction to point 2: x+0.07mm; 0.01 → 0.08
- pair 2: Correction to point 16: x−0.8mm; 44.63 → 43.83
- pair 5: Correction to point 24: x+0.35mm; 90.62 → 90.97
Gabriel Blaj reported that "Z deviations larger than ~150 micron are typos, or the metrology microscope focussing on the wrong surface. Please use the other 3 and assume a
flat surface to extrapolate the real Z". So, we apply Z correction:
- point 13 Z=−1.76 → 0
- point 17 Z=−1.75 → 0
- point 18 Z=−1.80 → 0
- point 21 Z=−1.76 → 0
- point 22 Z=−1.75 → 0
Quality check table for corrected metrology file
pair: S1 S2 dS1 dS2 L1 L2 dL1 dL2 <dS/L> angle(deg) D1 D2 dD d(dS) d(dL) dz3(um) Quad 0 pair: 0 20910 20910 -180 -180 43550 43540 90 80 -0.00413 -0.23684 48304 48306 -2 0 10 99.997 pair: 1 20920 20920 -200 -200 43560 43560 80 80 -0.00459 -0.26307 48309 48338 -29 0 0 100.000 pair: 2 20110 20100 10 20 43550 43540 10 0 0.00011 0.00658 47960 47964 -4 -10 10 39.998 pair: 3 20910 20900 -140 -130 43540 43530 -60 -70 -0.00310 -0.17767 48294 48294 0 -10 10 9.995 pair: 4 20900 20910 -220 -210 43540 43550 90 100 -0.00494 -0.28289 48296 48311 -15 -10 -10 -20.009 pair: 5 20920 20900 40 20 43550 43550 -20 -20 0.00069 0.03947 48304 48314 -10 20 0 10.000 pair: 6 20910 20910 -130 -130 43530 43540 -70 -60 -0.00299 -0.17109 48294 48298 -4 0 -10 0.002 pair: 7 20910 20909 -130 -129 43540 43540 -60 -60 -0.00297 -0.17041 48302 48298 4 -1 0 -30.000
Geometry parameters
Parameters for center and tilt are available in
/reg/neh/home1/dubrovin/LCLS/CSPadAlignment-v01/calib-mec-2013-12-20/*/0-end.data
Summary
- X coordinates are corrected for points 2, 16, 24
- Z coordinate is corrected for points 13, 17, 18, 21, 22
- After that all deviations are ~10um.
References
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