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    User name brads

    Log entry time 21:44:06 on November 18, 2008

    Entry number 249627

    This entry is a followup to: 248868

    keyword=BB Cerenkov discriminator calibration

    I measured the signal amplitudes at the trigger discriminator and at the TDC discriminators.

    In both cases a 1 photo-electron pulse was roughly 50--75 mV in amplitude.

    Right now, the TDC (ie. individual PMT) discriminators are set to -300mV, or 4--6 photo-electrons. (The trigger discriminator is remotely controllable.)

    A copy of this log entry has been emailed to: meziani