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User name M Friend
Log entry time 16:19:08 on December 7,2009
Entry number 305399
Followups:
keyword=Compton photon detectorThe Compton photon detector base current (green line) is very unstable. This is not normal and it makes me very worried. It doesn't appear to be due to high background rates or beam tune, since the photon rates don't look different than they did yesterday, when the base current was stable. Also it was happening at 13:30 today, when there was no beam. It appears to have started at 9:10-ish this morning.
FIGURE 1
FIGURE 2
