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User name D. Lhuillier
Log entry time 22:51:01 on October 6,2004
Entry number 133219
keyword=compton test
Took ~1h beam time to test a new acquisition of the compton photon detector.
The idea is to integrate the energy deposited in the compton calorimeter over a
polar window of 33ms using the HAPPEx ADCs.
Preliminary online analysis show a signal ~3000 channels above pedestal at
10uA. Pedestal fluctuations at the 10 channels level and no obvious
non-linearity.
Plan is to study more carefully the systematics during DVCS by running the
Compton and HAPPEx daq in parallel (not invasive for the experiment).