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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).