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    User name R. Michaels

    Log entry time 12:48:47 on February 3,2003

    Entry number 94499

    keyword=R-arm T9 plugged in, further notes

    Went to R-arm and plugged in T9 into 25th channel of normalization scaler.
    Also noted that T9 had the 2 microsec delay both for Trigger Supervisor input
    and for LNE into scalers, so unlike L-arm the TS-accept timing was not marginal.

    Also: T1,T2,T5 are indeed unplugged at L-arm TS. You should not see T1,T2
    in datastream. The reason for T5 is due to overlap of T3,T4 probably. Any over-
    lap within 10 nsec at TS is defined as a T5. Use the "trigger latch" TDC to sort
    it out. T4 is exclusive of T3 but not perfectly exclusive, due to timing effects.
    Even if T4 were the same as T3, it is delayed at the TS so that T3 should take
    precedence. However, if due to timing affects at MLU T4 overlaps with T3 and
    the prescale factors are both 1, you will get event type 5.