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    User name V. Sulkosky

    Log entry time 18:11:19 on September 10, 2008

    Entry number 243060

    keyword=A1 Aerogel Discriminator Threshold Changed (30 mV)

    Youcai Wang noticed that the A1 left spectra had larger distributions
    than the A1 right spectra. We found that the discriminator thresholds
    for left and right signals were -30 mV and -45 mV, respectively. The
    trigger map file for the left arm was set to be -30 mV for both. Some
    where the right threshold got set higher. I changed the threshold to be
    -30 mV and downloaded the trigger to make sure both discriminators are
    set to -30 mV automatically. The download was successful and both
    thresholds are the same now.

    A copy of this log entry has been emailed to: ycwang@jlab.org