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    User name Markowitz

    Log entry time 23:30:27 on June16,2005

    Entry number 146245

    keyword=A1 channel 10

    The ADC spectra for channel 10 for A1 (starting from channel 0) is showing only a broad pedestal. The TDC is showing nothing. The tube is drawing only 75% of the current of the others.

    I suspect the base or tube was knocked during the RICH installation and nobody noticed the poor spectra until now. Next access to the left HRS should check the HV and base connections.

    [Note that HV and ADC both start counting at channel 0, making this the eleventh PMT.]