Content

Detector name labels

Add label with unique detector name on each camera body

• agreed on unique detector names: 2M.0, 2M.1, 2M.2, ...
• if expected number of detectors more than 10 it is better to use 2M.00, 2M.01, 2M.02, ... (better for files sorting in catalogs).

Why it is important? We need to distinguish detectors in optical metrology and geometry constant files.  It does not matter for intensity correction, where detector will be identified by the panels Id from data.

Optical metrology

Use the same measurement pattern for all epix10ka2m detectors

• orientation of all cameras in optical metrology should be always the same
• order of measured points should be always the same

Why? We have to unambiguously map panels in optical metrology and in data from DAQ. Different detector orientation or different order of measurement need in special treatment in the processing script, which is error-prone and always needs in verification.

Camera orientation in optical metrology

Preferred optical metrology pattern from 2018-11-18:

• orientation of camera should be consistent with its beam-view in hatch, Q0 in top left corner.
  
  • orientation of quad labels should be human readable (from left to right) in hatch position
    • on current photo labels need to be rotated upside-down (right photo shows how embarrassing labels look in the hatch)
  • add labels for vector of gravity or x-y for optical metrology in order to exclude wrong orientation

Measurement order

• measurement order of points per quad should be done in style of Chris Kenney, as shown on photo.
• microscope origin location does not matter, but can be labeled somewhere for uniformity of metrology data.
• metrology data is saved in spreadsheets xlsx or text format.
• units - signed micrometers, without decimal dot.
• example of data:

quad 0
point   X       Y       Z
1       0       0       0
2       403     39683   -147
3       37088   39308   -472
4       36680  -378     -326
5       322     40433   -141
6       366     80129   -302
7       37056   80079   -657
8       37007   40391   -452
9       42053   40578   -470
10      42046   80274   -669
11      78743   80269   -961
12      78733   40576   -725
13      42083   219     -297
14      42078   39472   -413
15      78774   39473   -711
16      78767   214     -640
quad 1
point   X       Y       Z
1       81539   -4620   -731
2       81352   32062   -814
3       121034  32267   -1079
4       121225  -4420   -1015
5       81390   37579   -882
6       81497   74238   -993
7       121177  74148   -1219
8       121073  37468   -1127
9       122083  37596   -1104
10      122171  74281   -1329
11      161853  74189   -1620
12      161768  37499   -1433
13      122081  -4398   -916
14      122183  32283   -988
15      161877  32161   -1333
16      161765  -4520   -1286


Quad 2
...
Quad 3
...

Label on connectors and cables

• All labels on detector connectors and cables should show THE ONLY WAY to connect camera in hatch.

Summary

• Engrave detector name on camera body.
• Add labels for unambiguous detector orientation:
  • vector of gravity,
  • x-y (and optional origin) for optical metrology,
  • all labels should be left-to-right readable in hatch (now for 2M.0 they are upside-down).
• Use the same detector orientation in optical metrology, Q0 is in upper left corner in microscope x-y. Origin does not matter.
• Use the same order of measuring points per quad, as numerated on photo.
• Connect camera connectors to properly labeled cables.