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    User name brownds

    Log entry time 23:36:44 on October 29,1998

    Entry number 4101

    This entry is a followup to: 4068

    keyword=H-arm shower counter

    H-arm shower counter channel 28 has large pedestal, causing spike in
    SUMV distribution. After setting channel 28 ADC threshold to 200 counts
    the SUMV histogram is considerably improved (right plot), and ADC spectrum
    looks similar to neighboring channels.


    FIGURE 1

    FIGURE 2