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• pL = pH - (BH-BL) + (BH-pH)*GL/GH,
  last term accounts for the difference between B and p in H- and L-gain modes, where

• • p - pedestal
  • B - fit base-level offset parameter
  • G - gain
• this correction increase pedestals ~0.5-0.7%

Questions

• do we need to account for the difference between offset (B) and pedestal (Gabriel's version)
• the same difference may be between fit B(L) and pedestal(L) OR it is smaller due to the gain? 
  
  
• is current procedure correct?
• if not
  • what is correct procedure?
  • or what could we calibrate with charge injection?

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