Optical measurement
Chris informed me that in this measurement the detector was rotated by 180 degree, that requires to interchange of Q0 with Q2 and Q1 with Q3 parameters. It was done in 2013-01-24-CSPAD-XPP-Metrology.txt-standard file.
2013-01-24 XPP CSPad metrology file from Chris Kenney:
2013-01-24-CSPAD-XPP-Metrology.xlsx
identically converted to the text format
2013-01-24-CSPAD-XPP-Metrology.txt
Image at conversion:
It is clear that Quad 2 p.21 (12 in standard numeration) is 1000um off. It is corrected in the 2013-01-24-CSPAD-XPP-Metrology.txt file
21 138001 72973 120 is changed for: 21 139001 72973 120
Then:
- converted to the standard for quads file format,
- quads numeration is changed by 180 degree rotation (swapped data for Q0 with Q2 and Q1 with Q3) in:
2013-01-24-CSPAD-XPP-Metrology-standard.txt
Image for all quads after correction:
QC procedure and results
We calculate
S1 - 1st short side length of 2x1
S2 - 2nd short side length of 2x1
L1 - 1st long side length of 2x1
L2 - 2nd long side length of 2x1
D1 - 1st diagonal of 2x1 between corners 1 and 3
D2 - 2nd diagonal of 2x1 between corners 2 and 4
dS and dL are the deviations of the 1st and 2nd corner along the short and long sides, respectively. The sign of all dS are chosen in order to provide correct sign for the tilt angle (the same direction for all 2x1 sensors).
<dS/L> - the tilt angle of 2x1 averaged over two sides in radians.
angle(deg) - the same angle in degrees.
dD = D1 - D2
d(dS) = dS1 - dS2
d(dL) = dL1 - dL2
Quality check parameters for the perfect measurement:
- S1=S2, L1=L2 - the 2x1 sides should have equal length and width
- dS1 = dS2 = 2*dL1 =2*dL2 - tilt angle should provide consistent deviation for all corners
- dD=0, d(dS)=0, and d(dL)=0 - within precision of measurement.
Everything, excluding <dS/L> and angle(deg), are in micrometers.
pair: S1 S2 dS1 dS2 L1 L2 dL1 dL2 <dS/L> angle(deg) D1 D2 dD d(dS) d(dL) Quad 0 pair: 0 20891 20913 200 222 43539 43541 -102 -100 0.00485 0.27766 48298 48297 1 -22 -2 pair: 1 20910 20894 293 277 43540 43535 -127 -132 0.00655 0.37506 48302 48289 13 16 5 pair: 2 20890 20906 99 83 43536 43536 42 42 0.00209 0.11976 48290 48293 -3 16 0 pair: 3 20897 20895 131 133 43545 43543 65 63 0.00303 0.17369 48299 48297 2 -2 2 pair: 4 20911 20896 -30 -45 43549 43547 17 15 -0.00086 -0.04934 48303 48306 -3 15 2 pair: 5 20901 20898 10 7 43540 43544 -8 -4 0.00020 0.01119 48296 48299 -3 3 -4 pair: 6 20904 20903 104 105 43536 43540 55 59 0.00240 0.13752 48302 48290 12 -1 -4 pair: 7 20901 20901 -7 -7 43545 43543 -3 -5 -0.00016 -0.00921 48299 48301 -2 0 2 Quad 1 pair: 0 20913 20914 -343 -342 43540 43550 165 175 -0.00787 -0.45066 48313 48303 10 -1 -10 pair: 1 20898 20901 -145 -142 43548 43551 62 65 -0.00330 -0.18880 48300 48309 -9 -3 -3 pair: 2 20895 20903 -151 -159 43535 43532 -74 -77 -0.00356 -0.20400 48289 48291 -2 8 3 pair: 3 20672 20909 -35 -272 43541 43354 163 -24 -0.00354 -0.20276 48294 48036 258 237 187 pair: 4 20940 20904 -455 -491 43527 43554 214 241 -0.01086 -0.62242 48309 48309 0 36 -27 pair: 5 20910 20903 -302 -309 43546 43546 145 145 -0.00702 -0.40196 48304 48307 -3 7 0 pair: 6 20901 20919 -421 -439 43529 43539 -213 -203 -0.00988 -0.56593 48296 48298 -2 18 -10 pair: 7 20907 20907 -452 -452 43548 43539 -201 -210 -0.01038 -0.59475 48315 48294 21 0 9 Quad 2 pair: 0 20910 20906 -237 -241 43531 43546 103 118 -0.00549 -0.31452 48295 48303 -8 4 -15 pair: 1 20931 20900 -176 -207 43540 43539 90 89 -0.00440 -0.25200 48300 48305 -5 31 1 pair: 2 20903 20903 -489 -489 43526 43531 -240 -235 -0.01123 -0.64366 48287 48292 -5 0 -5 pair: 3 20900 20907 -444 -451 43538 43530 -220 -228 -0.01028 -0.58896 48286 48303 -17 7 8 pair: 4 20911 20905 -320 -326 43541 43537 156 152 -0.00742 -0.42506 48299 48301 -2 6 4 pair: 5 20914 20912 -15 -17 43548 43537 10 -1 -0.00037 -0.02105 48301 48307 -6 2 11 pair: 6 20894 20896 -256 -258 43542 43544 -127 -125 -0.00590 -0.33817 48295 48300 -5 2 -2 pair: 7 20909 20904 -208 -203 43537 43541 -103 -99 -0.00472 -0.27043 48296 48300 -4 -5 -4 Quad 3 pair: 0 20902 20898 -82 -86 43536 43543 30 37 -0.00193 -0.11054 48289 48302 -13 4 -7 pair: 1 20900 20904 79 83 43548 43541 -35 -42 0.00186 0.10658 48301 48301 0 -4 7 pair: 2 20912 20894 181 199 43536 43535 97 96 0.00436 0.25005 48298 48289 9 -18 1 pair: 3 20912 20905 119 126 43539 43538 57 56 0.00281 0.16121 48296 48301 -5 -7 1 pair: 4 20894 20912 -454 -436 43534 43545 212 223 -0.01022 -0.58560 48303 48296 7 -18 -11 pair: 5 20906 20719 -136 -323 43227 43535 155 463 -0.00528 -0.30268 48295 47937 358 187 -308 pair: 6 20902 20905 -203 -206 43537 43525 -89 -101 -0.00470 -0.26916 48293 48287 6 3 12 pair: 7 20900 20897 -140 -137 43539 43544 -68 -63 -0.00318 -0.18225 48298 48296 2 -3 -5
Comparing deviations of dS1 and dS2, and dL1 and dL2, we found:
- In Quad 1, pair: 3 mis-measured x and y - Use it as is.
- In Quad 3, pair: 5 mis-measured x and y - Use it as is.
- All other measurements are consistent within measurement precision about 10um
- Angles of 2x1 are in the range from -0.64 to +0.38 degree.
Quality check can be improved if
Q1,p3: 12 21331 47024 47 -> x+200, y-200 12 21531 46824 47 Q3,p5: 24 90849 68979 218 -> x+300, y-200 24 91149 68779 218
This correction gives:
pair: S1 S2 dS1 dS2 L1 L2 dL1 dL2 <dS/L> angle(deg) D1 D2 dD d(dS) d(dL) Quad 1 pair: 3 20872 20909 -35 -72 43541 43554 -37 -24 -0.00123 -0.07039 48294 48303 -9 37 -13 Quad 3 pair: 5 20906 20919 -336 -323 43527 43535 155 163 -0.00757 -0.43369 48295 48294 1 -13 -8
Use it for alignment further parameters.
Configuration parameters
center/0-end.data (pixel)
196.58 197.46 312.31 99.99 629.11 629.05 710.60 497.27 199.85 198.38 314.45 101.18 630.72 632.74 711.36 499.00 199.79 198.46 315.18 102.65 632.90 633.49 713.90 502.06 197.65 197.91 311.84 98.96 630.09 631.96 712.21 499.47 308.83 96.41 626.85 626.55 509.45 721.85 195.31 195.60 306.93 94.41 623.89 624.24 508.67 721.48 192.26 194.83 306.21 94.34 626.07 629.16 511.51 724.40 196.20 198.82 308.59 95.44 626.29 625.74 509.78 722.37 195.35 196.18 1.00 1.04 0.64 1.14 0.05 -0.03 -0.18 0.45 0.92 1.38 0.26 -0.01 0.62 0.13 1.35 1.25 1.88 1.86 2.24 1.95 2.74 2.80 2.69 2.36 1.83 1.58 2.23 2.32 1.92 2.07 1.42 0.54
tilt/0-end.data (degree)
0.27766 0.37506 0.11976 0.17369 -0.04934 0.01119 0.13752 -0.00921 -0.45066 -0.18880 -0.20400 -0.07039 -0.62242 -0.40196 -0.56593 -0.59475 -0.31452 -0.25200 -0.64366 -0.58896 -0.42506 -0.02105 -0.33817 -0.27043 -0.11054 0.10658 0.25005 0.16121 -0.58560 -0.43369 -0.26916 -0.18225
offset/0-end.data
0 0 820 820 0 820 820 0 0 0 0 0
offset_corr/0-end.data
0 0 0 0 0 0 0 0 0 0 0 0
marg_gap_shift/0-end.data
15 40 2 25 15 40 2 25 0 0 0 0
Quad origin coordinates
This info could be translated in marg_gap_shift and other corrections...
Interchange of quads is not accounted...
center x, y = 811.49 839.80 quad, x1, y1, dx, dy = 0 787.01 819.08 -24.48 -20.73 quad, x1, y1, dx, dy = 1 791.69 865.45 -19.80 25.64 quad, x1, y1, dx, dy = 2 835.79 859.52 24.30 19.71 quad, x1, y1, dx, dy = 3 831.48 815.17 19.98 -24.63 d1, d2 = 20.06 24.76
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