[Primexd] [New Logentry] FCAL gain change during He runs

[ilarin at jlab.org]

Logentry Text:
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pi0 gain calibration for FCAL have been performed for three recent run groups (all He target):

group1 61378-61534
group2 61537-61568
group3 61620-61662

FCAL base replacement has been done in between of these groups.
Channels with the gain change more than 5% have been written out

pi0 peak shift in between groups observed (the 1st number is FCAL id):

group 1->2
371    +5.2%
798    +7.5%
1513  -13.6%
1548   -6.7%
1861   -6.2%

group 2->3
73    +5.3%
1412  +8.0%
1547  +5.3%
1548  +8.0%

Other findings for these groups:
group1:
gain change in the middle:
  553  -10.6% pi0 mass shift
2283 -27.8% pi0 mass shift

group 3
 73   further gain change in the middle
2317 dead



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