Content
Optical measurement
- 2013-12-20-CSPAD-CXI-DS1-Metrology.xlsx- file from Gabriel Blaj
- 2013-12-20-CSPAD-CXI-DS1-Metrology.txt - text version of this file
- 2013-12-20-CSPAD-CXI-DS1-Metrology-corr.txt - text file with four corrected measurements (see below)
Plots from Gabriel Blaj:
Quality check
Evaluated parameters
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
dz3(um) - signed distance from 2x1 sensor plane and corner 3, where the 2x1 sensor plane contains the corner points p1, p2, and p4. This plane is defined by the vectors v21=p2-p1, v41=p4-p1, and their orthogonal vector
vort = [v21 x v41].
Scalar product with normalization defines the distance from point 3 to the 2x1 plane containing 3 other points:
dz3 = (v31 * vort) / |vort|.
S1=S2, L1=L2 - the 2x1 sides should have equal length and width,
D1=D2 - the 2x1 diagonals should be equal,
dS1 = dS2 (approximately)= (388/185)*dL1 = (388/185)*dL2 - tilt angle should provide consistent deviation for all corners,
dD=0, d(dS)=0, and d(dL)=0 - within precision of measurement.
dz3(um) = 0
Everything, excluding <dS/L> and angle(deg), are in micrometers.
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 20913 20911 35 33 43542 43545 -17 -14 0.00078 0.04474 48305 48304 1 2 -3 -15.007 pair: 1 20907 20911 6 10 43544 43547 -6 -3 0.00018 0.01053 48304 48305 -1 -4 -3 -9.007 pair: 2 20907 20908 -12 -13 43543 43545 -4 -2 -0.00029 -0.01645 48305 48300 5 1 -2 -20.006 pair: 3 20914 20915 -21 -22 43552 43561 -19 -10 -0.00049 -0.02828 48313 48321 -8 1 -9 -13.023 pair: 4 21517 20909 569 -39 43597 43545 23 -29 0.00608 0.34824 48574 48347 227 608 52 149.012 pair: 5 20904 20898 -24 -30 43557 43544 23 10 -0.00062 -0.03552 48309 48303 6 6 13 57.012 pair: 6 21711 20934 -256 521 43578 43580 -127 -125 0.00304 0.17419 48344 48687 -343 -777 -2 -3.071 pair: 7 20912 20942 -33 -63 43550 43548 -23 -25 -0.00110 -0.06315 48315 48317 -2 30 2 -44.030 Quad 1 pair: 0 20906 20915 24 33 43541 43541 -13 -13 0.00065 0.03750 48302 48301 1 -9 0 17.006 pair: 1 20908 20915 -52 -45 43544 43540 24 20 -0.00111 -0.06382 48302 48304 -2 -7 4 -5.998 pair: 2 20850 20913 -15 -78 43544 43543 -6 -7 -0.00107 -0.06119 48305 48277 28 63 1 -6.022 pair: 3 20916 20909 -5 2 43543 43543 -2 -2 -0.00003 -0.00197 48303 48305 -2 -7 0 -14.003 pair: 4 20911 20864 -35 -82 43543 43545 40 42 -0.00134 -0.07697 48306 48282 24 47 -2 17.042 pair: 5 20911 20900 16 5 43546 43605 -10 49 0.00024 0.01381 48352 48308 44 11 -59 -63.016 pair: 6 20906 20913 120 113 43550 43550 53 53 0.00268 0.15327 48307 48312 -5 7 0 8.996 pair: 7 20909 20909 42 42 43515 43548 -13 20 0.00096 0.05528 48277 48307 -30 0 -33 12.977 Quad 2 pair: 0 20909 20907 -29 -31 43543 43541 14 12 -0.00069 -0.03948 48300 48302 -2 2 2 50.998 pair: 1 20921 20912 -177 -186 43548 43563 87 102 -0.00417 -0.23876 48324 48311 13 9 -15 27.997 pair: 2 20972 21502 -81 -611 43524 43560 -18 18 -0.00794 -0.45515 48597 48294 303 530 -36 -51.477 pair: 3 20907 20907 -51 -51 43542 43543 -23 -22 -0.00117 -0.06711 48303 48299 4 0 -1 4.999 pair: 4 20908 20905 127 124 43542 43541 -60 -61 0.00288 0.16514 48300 48300 0 3 1 -59.003 pair: 5 20903 20931 76 104 43546 43545 -42 -43 0.00207 0.11842 48309 48308 1 -28 1 20.900 pair: 6 20911 20910 74 75 43547 43546 37 36 0.00171 0.09802 48307 48306 1 -1 1 9.000 pair: 7 20918 20925 149 142 43551 43540 80 69 0.00334 0.19144 48315 48306 9 7 11 -30.015 Quad 3 pair: 0 20908 20908 -83 -83 43541 43542 38 39 -0.00191 -0.10922 48300 48302 -2 0 -1 130.998 pair: 1 20908 20908 -104 -104 43545 43545 50 50 -0.00239 -0.13684 48304 48304 0 0 0 9.000 pair: 2 20913 20912 103 104 43550 43546 53 49 0.00238 0.13617 48310 48307 3 -1 4 2.000 pair: 3 20734 20915 -131 -312 43547 43565 -84 -66 -0.00508 -0.29135 48306 48250 56 181 -18 -9.111 pair: 4 20909 20908 -57 -58 43547 43612 30 95 -0.00132 -0.07560 48367 48304 63 1 -65 -9.075 pair: 5 20914 20940 -15 11 43576 43549 21 -6 -0.00005 -0.00263 48334 48322 12 -26 27 -12.026 pair: 6 20905 20910 210 205 43544 43580 69 105 0.00476 0.27292 48308 48331 -23 5 -36 39.953 pair: 7 20918 20914 186 190 43565 43545 91 71 0.00432 0.24731 48308 48325 -17 -4 20 3.996
Significant deviations are observed in 4 points.
Applied corrections
- Quad 0, pair 4, point 17 Y: 45689 + 608 = 46297
- Quad 0, pair 6, point 32 X: 88753 - 777 = 87976
- Quad 2, pair 2, point 15 X: 44111 - 530 = 43581
- Quad 3, pair 3, point 12 X:21361 + 181 = 21542
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 20913 20911 35 33 43542 43545 -17 -14 0.00078 0.04474 48305 48304 1 2 -3 -15.007 pair: 1 20907 20911 6 10 43544 43547 -6 -3 0.00018 0.01053 48304 48305 -1 -4 -3 -9.007 pair: 2 20907 20908 -12 -13 43543 43545 -4 -2 -0.00029 -0.01645 48305 48300 5 1 -2 -20.006 pair: 3 20914 20915 -21 -22 43552 43561 -19 -10 -0.00049 -0.02828 48313 48321 -8 1 -9 -13.023 pair: 4 20909 20909 -39 -39 43597 43545 23 -29 -0.00090 -0.05128 48308 48347 -39 0 52 151.804 pair: 5 20904 20898 -24 -30 43557 43544 23 10 -0.00062 -0.03552 48309 48303 6 6 13 57.012 pair: 6 20934 20934 -256 -256 43578 43580 -127 -125 -0.00587 -0.33658 48344 48349 -5 0 -2 -3.001 pair: 7 20912 20942 -33 -63 43550 43548 -23 -25 -0.00110 -0.06315 48315 48317 -2 30 2 -44.030 Quad 1 pair: 0 20906 20915 24 33 43541 43541 -13 -13 0.00065 0.03750 48302 48301 1 -9 0 17.006 pair: 1 20908 20915 -52 -45 43544 43540 24 20 -0.00111 -0.06382 48302 48304 -2 -7 4 -5.998 pair: 2 20850 20913 -15 -78 43544 43543 -6 -7 -0.00107 -0.06119 48305 48277 28 63 1 -6.022 pair: 3 20916 20909 -5 2 43543 43543 -2 -2 -0.00003 -0.00197 48303 48305 -2 -7 0 -14.003 pair: 4 20911 20864 -35 -82 43543 43545 40 42 -0.00134 -0.07697 48306 48282 24 47 -2 17.042 pair: 5 20911 20900 16 5 43546 43605 -10 49 0.00024 0.01381 48352 48308 44 11 -59 -63.016 pair: 6 20906 20913 120 113 43550 43550 53 53 0.00268 0.15327 48307 48312 -5 7 0 8.996 pair: 7 20909 20909 42 42 43515 43548 -13 20 0.00096 0.05528 48277 48307 -30 0 -33 12.977 Quad 2 pair: 0 20909 20907 -29 -31 43543 43541 14 12 -0.00069 -0.03948 48300 48302 -2 2 2 50.998 pair: 1 20921 20912 -177 -186 43548 43563 87 102 -0.00417 -0.23876 48324 48311 13 9 -15 27.997 pair: 2 20972 20972 -81 -81 43524 43560 -18 18 -0.00186 -0.10659 48364 48294 70 0 -36 -50.086 pair: 3 20907 20907 -51 -51 43542 43543 -23 -22 -0.00117 -0.06711 48303 48299 4 0 -1 4.999 pair: 4 20908 20905 127 124 43542 43541 -60 -61 0.00288 0.16514 48300 48300 0 3 1 -59.003 pair: 5 20903 20931 76 104 43546 43545 -42 -43 0.00207 0.11842 48309 48308 1 -28 1 20.900 pair: 6 20911 20910 74 75 43547 43546 37 36 0.00171 0.09802 48307 48306 1 -1 1 9.000 pair: 7 20918 20925 149 142 43551 43540 80 69 0.00334 0.19144 48315 48306 9 7 11 -30.015 Quad 3 pair: 0 20908 20908 -83 -83 43541 43542 38 39 -0.00191 -0.10922 48300 48302 -2 0 -1 130.998 pair: 1 20908 20908 -104 -104 43545 43545 50 50 -0.00239 -0.13684 48304 48304 0 0 0 9.000 pair: 2 20913 20912 103 104 43550 43546 53 49 0.00238 0.13617 48310 48307 3 -1 4 2.000 pair: 3 20915 20915 -131 -131 43547 43565 -84 -66 -0.00301 -0.17232 48306 48328 -22 0 -18 -9.014 pair: 4 20909 20908 -57 -58 43547 43612 30 95 -0.00132 -0.07560 48367 48304 63 1 -65 -9.075 pair: 5 20914 20940 -15 11 43576 43549 21 -6 -0.00005 -0.00263 48334 48322 12 -26 27 -12.026 pair: 6 20905 20910 210 205 43544 43580 69 105 0.00476 0.27292 48308 48331 -23 5 -36 39.953 pair: 7 20918 20914 186 190 43565 43545 91 71 0.00432 0.24731 48308 48325 -17 -4 20 3.996
- X-Y precision of measurements is about 60um
- Tilt angles are in range from -0.33 to 0.27 degree
- Z deviations from flatness are in the range from -63 to 152um
Geometry parameters
center/0-end.data (pixel)
197.94 198.05 304.45 97.98 623.08 623.74 706.30 498.64 198.22 198.17 304.58 97.25 622.90 623.09 708.37 495.18 197.22 198.51 300.71 96.77 621.46 620.95 709.39 496.88 198.80 198.29 304.26 101.44 625.93 625.40 705.81 497.16 301.22 95.14 621.13 621.36 516.12 724.42 197.91 196.12 303.12 94.88 619.87 620.29 515.50 722.83 197.13 196.76 301.51 94.34 622.96 623.24 519.67 725.08 198.86 198.69 300.50 94.63 621.71 622.07 515.69 722.61 196.56 195.96 0.47 0.17 -0.25 0.17 0.65 -0.19 -0.14 -0.50 0.36 -0.16 -0.07 0.03 0.38 -0.13 -0.04 -0.18 0.01 -0.37 0.95 -0.22 0.08 -0.75 0.21 0.05 -0.05 -0.08 0.25 0.19 0.03 -0.21 0.21 0.12
or the same in um
21757 21769 33464 10769 68489 68561 77637 54810
21788 21783 33479 10689 68469 68489 77863 54430
21678 21820 33054 10637 68310 68254 77976 54617
21851 21796 33444 11150 68801 68743 77582 54648
33110 10457 68275 68299 56732 79628 21754 21558
33319 10429 68135 68182 56664 79453 21668 21628
33141 10369 68476 68506 57121 79700 21858 21839
33030 10402 68338 68378 56684 79429 21605 21540
51 18 -28 18 71 -20 -15 -54
39 -18 -7 3 41 -14 -4 -20
1 -40 104 -24 9 -82 23 6
-5 -8 27 20 2 -23 23 13
tilt/0-end.data (degree)
0.04474 0.01053 -0.01645 -0.02828 -0.05128 -0.03552 -0.33658 -0.06315 0.03750 -0.06382 -0.06119 -0.00197 -0.07697 0.01381 0.15327 0.05528 -0.03948 -0.23876 -0.10659 -0.06711 0.16514 0.11842 0.09802 0.19144 -0.10922 -0.13684 0.13617 -0.17232 -0.07560 -0.00263 0.27292 0.24731
offset/0-end.data
0 0 820 820 0 820 820 0 0 0 0 0
2014-03-05 Alignment of Quads
Data for alignment
In order to get cspad geometry parameters for experiment cxib6714 Jason Koglin suggested to use cxi83714 runs 17,18, 127, 128, 130-132, 135, 136.
CSPAD array with subtracted pedestal and threshold 4*rms(per pixel) is averaged over 5000 events of run 136.
Parameters from latest optical measurement
center and tilt are used from /reg/neh/home1/dubrovin/LCLS/CSPadAlignment-v01/calib-cxi-ds1-2013-12-20
Tuned calibration parameters
offset_corr/0-end.data :
0 0 4 4 0 4 1 1 0 0 0 0
marg_gap_shift/0-end.data :
15 40 4 40 15 40 4 40 0 0 0 0
Results
2014-03-26 quads alignment with semi-automatic algorithm for ring center finding
R-phi presentation if the image using previous alignment
shows that manual quads alignment is done with precision about ±1 pixel but can be improved.
Slightly better results for quads alignment were obtained with semi-automatic ring center finder by changing parameters
offset_corr/136-136.data :
1 1 4 4 0 5 2 2 0 0 0 0
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