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Calibration DB names

Calibration constantconstants on MongoDB server are grouped in databases identified by their names

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Constants can be deployed with commands cdb and epix10ka_deploy_constants, see for detail

• cdb -h
• epix10ka_deploy_constants -h

for example

• cdb add -e rixx45619 -d epixhr2x2_000001 -t 2021-10-01T00:00:00-0800 -c pedestals -f mypeds
• cdb add -e rixx45619 -d epixhr2x2_000001 -t 2021-10-01T00:00:00-0800 -c geometry -f mygeo -i txt
• epix10ka_deploy_constants -e rixx45619 -d epixhr -r121 -D

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Browsing and management of constants in calibration DB can be done with command

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Get corrected data

Example of script to get raw and corrected data where usage of calibration  constants is hidden in det.raw.calib/image methods,in psana environment:

from psana import DataSource
ds = DataSource(exp='rixx45619', run=121)
det = run.Detector('epixhr')
raw = det.raw.raw(evt)
arr = det.raw.calib(evt)
img = det.raw.image(evt)

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For details see Area Detector Interface - Calibration Constants

All detector calibration constants (np.array) and associated metadata (dict) are available through the dictionary det.calibconst with calibration type as a key. For example,

Possible calibration types: pedestals, pixel_status,  pixel_rms,  pixel_gain, pixel_mask, etc.

References

• Area Detector Interface
• Private Calibration Constants
• psdm_mongo_ws
• API access to the LCLS2 eLog
• ex10-web-iface-murali.py
• Python Classes for Configuration Management in MongoDB
• cdb
• epix10ka_deploy_constants