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• In alc1 two data banks look different from other banks, but they are not so bad to discard them by changing thresholds.
• The "scratch" in alc3 is not seen in dark.
• The number of bad/discarded pixels can be changed by variation of thresholds.

Summary of the mtg with Chuck

Discuss article

  - Q: definition of robust parameters
    A: robust mean is median xi
       robust sigma is median |xi-mu|
  - Q: difference in algorithms
    A:
    - for intensity and rms is about the same
    - do not have/use bad pixel status for gain factors (generated from flat field)
    - do not use stat analysis of the flat field

  - Q: What do you expect us to do about bad pixel mask improvement?
    A:
      - their code is terrible
      - re-implement and try their algorithms
  - Q: need help in analysis algorithms to check the bad pixel mask
       - hit rate
       - indexing efficiency
    A: - Chuck's team can do that
  - Chuck: start with "flat field" sample for epix_alc3 and try to find bad  pixels "next to central row and "scratch"

REFERENCES

• Paper in JAC: Automatic bad-pixel mask maker for X-ray pixel detectors with application to serial crystallography,
• Journal of Applied Crystallography - 2022 - Sadri - Automatic bad‐pixel mask maker for X‐ray pixel detectors with.pdf

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