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    User name R. Michaels

    Log entry time 09:59:47 on December12,2007

    Entry number 220139

    This entry is a followup to: 220137

    keyword=re: u10, d10

    I think u10 and d10 may be ok on L-HRS. It's worth re-looking.
    For example, run 3781 was 47.4 minutes long, and in that time
    the x10 gain may overflow (it has the highest rate among the
    3 gain settings) leading to a sign bit issue. See fig 1.
    First two plots show the counts on u10 and d10 on L-HRS versus
    time. Near the end of the run it appears negative. Next I show
    how the d10 counts correlate with d1. Finally I show the u10
    rate versus time before 2500 sec. It shows the beam trips and
    looks normal.

    FIGURE 1