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Optical measurement is maintained by Chris Kenney.
This procedure depends on CSPAD construction.
For CSPad with moving quads (for CXI) measurement is done quad-by-quad,
where the 1st point of each quad is cloasest to the beam and has coordinates (0,0).

For CSPad with fixed quads (for XPP) measurement is done for entire detector:

Chris produces a table of corner coordinates in um (micrometers) in xlsx format:
which is converted by the script in text file to feed the python script...
Example for CXI:
2012-01-12-Run5-DSD-Metrology-corrected.xlsx2012-01-12-Run5-DSD-Metrology-corrected.txt

Example for XPP:
2013-01-29-CSPAD-Metrology-XPP.xlsx2013-01-29-CSPAD-XPP-Metrology.txt2013-01-29-CSPAD-XPP-Metrology-standard.txt

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