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Results with upgraded algorithm for pedestals calibration

Dark run 101 old vs new pedestals comparison

This is a demo of how user might be easily screwed up applying their own algorithm for pedestal calculation.

Five images of the raw-peds for the same 5-step dark run 101 were obtained by command like 

lcls2/psana/psana/detector/test_01_epix10ka_raw_calib_image.py image -e ueddaq02 -d epixquad -r101 -Sraw-peds -J1 -K500 -N510 -g2 -M2 -o 2021-03-12-figs/r101-raw-peds-old-dark-ev0510-st2-gn2

then old constants were removed from DB with calibman

new constants were generated with new dark processing algorithm and similar images for new pedestals were generated:

lcls2/psana/psana/detector/test_01_epix10ka_raw_calib_image.py image -e ueddaq02 -d epixquad -r101 -Sraw-peds -J1 -K500 -N510 -g2 -M2 -o 2021-03-12-figs/r101-raw-peds-new-dark-ev0510-st2-gn2

Images of raw-peds in pairs for old and new constants for FH, FM, FL, AHL-H, and AML-M:

FH step 0

Image AddedImage Added

FM step 1

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FL step2

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AHL-H step3

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AML-M step 4

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Dark run 101 using pedestals from wrong gain range

Another demo of how user cvan be screwed-up using pedestals from wrong gain range.

lcls2/psana/psana/detector/test_01_epix10ka_raw_calib_image.py image -e ueddaq02 -d epixquad -r101 -Sraw-peds -J1 -K500 -N510 -g0 -M2 -o 2021-03-12-figs/r101-raw-peds-new-dark-ev0510-st2-gn0

raw(FL) - peds(FH)

Image Added

lcls2/psana/psana/detector/test_01_epix10ka_raw_calib_image.py image -e ueddaq02 -d epixquad -r101 -Sraw-peds -J1 -K500 -N510 -g2 -M0 -o 2021-03-12-figs/r101-raw-peds-new-dark-ev0510-st1-gn2

raw(FH) - peds(FL)

Image Added

Dark run 168 with single step in FL

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