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Why do I think that 2020-02-25 optical metrology is good
- metrology was done on 2020-02-25 for new detector which currently labeled on connectors side as ePix10k2M 1, also known as epix10ka2m.1, 2M.1 etc.
- very good quality check
- all z-measurements are around 1 feet, have a lot of repeatable numbers - can't be trusted
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- red rectangles - for points measured in optical metrology
- blue rectangles - panels reconstructed from geometry file
DAQ panel indexes in optical metrology possible detector orientations
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rot = 0 ^y Q0 1 3 | 4 5 Q1 0 2 | 6 7 ---------+----------> x 15 14 | 10 8 Q3 13 12 | 11 9 Q2 rot = 1 ^y Q3 13 15 | 0 1 Q0 12 14 | 2 3 ---------+----------> x 11 10 | 6 4 Q2 9 8 | 7 5 Q1 rot = 2 ^y Q2 9 11 | 12 13 Q3 8 10 | 14 15 ---------+----------> x 7 6 | 2 0 Q1 5 4 | 3 1 Q0 rot = 3 ^y Q1 5 7 | 8 9 Q2 4 6 | 10 11 ---------+----------> x 3 2 | 14 12 Q0 1 0 | 15 13 Q3 |
Images of panels in data for all detector orientations in metrology processing v1 without quads
- v1 of the metrology processing script represents simplest approach - each panel coordinates are taken as is to insert in the detector
- data from mfxc00118 run44 silver-behenate sample
- data panel 1 (numerated from 0 to 15) is replaced by intensity ascending array, darkest corner is (0,0) pixel.
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- numeration of quads at rotation looks symmetric - so seems right
- one orientation of the detector gives correct image and it shows smallest offsets between panels in quads
Detector orientation in the hutch
mfxc00118 runs 70-73 for Fe55 in the corner of quad 0-3
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Panel 0 data is replaced by the ascending intensity array, (0,0) pixel is in the darkest corner.
mfxc00118 run44 silver-behenate
panel 1 is marked
mfxc00318 run 10,13 lysozyme
psana direct and mirror image for crystfel
panel 0 is marked on full size image
Geometry files centered for mfxc00318 run13 lysozyme
- 2020-02-25-geometry-epix10ka2m.1-v1-mfxc00318-0013-z0.txt
- 2020-02-25-geometry-epix10ka2m.1-v1-mfxc00318-0013-z0-mirror.txt
- 2020-02-25-geometry-epix10ka2m.1-v1-mfxc00318-0013-z0-mirror-crystfel.txt
Geoptimizer or how geometry can be screwed-up
First, thanks to Olexandr and Marina for discovering how our geometry should be mapped to data array.
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- It is clear that blind application of geoptimizer may cause >1 mm offset of panels in x-y ...
- It is suggested to use geoptimizer for panels with fixed center and panel orientation in (x,y) from optical metrology and apply optimization for z coordinate and off-plane tilts. Z coordinates were not measured correctly in optical metrology.
- Next optical metrology is expected to be with precise (~10um) Z measurement.
References
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