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    User name brads

    Log entry time 21:56:43 on August 5,2006

    Entry number 177662

    keyword=Beamline HV glitch

    Slot 8 'tDVCS' channel 0, and slot 13 'Compton' channel 0 had tripped at some point. The shift crew tells me they are not in the alarm handler so the trip went unnoticed. As far as I can tell these are for the Compton Polarimeter and are not in use anyway. I re-engaged the two channels on the respective Card screens.

    FWIW, I don't recall there being any indication of a problem (ie. red 'Beamline' text in the 'LeCroy HV' window) at 4pm this afternoon.

    The HV trip may have been coincident with the VESDA alarm this evening...

    Figure 1 (before), Figure 2 (after reset).


    FIGURE 1

    FIGURE 2