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Types of offline calibrations on the ground.

  • Pedestal.  Use B/13 (non zero-suppressed) run or periodic/solicited triggers from flight mode runs.
    • Caculate mean/rms of pedestal values.  Check for skewness?
    • HV on or off?
    • Outlier rejection if HV on.
    • How to treat NA tiles.
  • MIP peak.  Use any muon runs.
    • Fit smooth curve to MIP peak.
    • Select fit range avoid pathologies
    • Select tracks near normal incidence.
    • Correct for pathlength in the tiles.   (This requires pedestal subrataction first).
  • Veto turn-on.   Use any muon runs.
    • Estimate 50% point of veto turn on curve.
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