User name D. Lhuillier
Log entry time 22:51:01 on October 6,2004
Entry number 133219
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
Plan is to study more carefully the systematics during DVCS by running the
Compton and HAPPEx daq in parallel (not invasive for the experiment).