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    User name R. Michaels

    Log entry time 16:02:05 on January20,2005

    Entry number 139717

    keyword=helicity scalers not gated properly

    I realize the experiment doesn't care about helicity, but ...

    Bodo pointed out to me that the helicity scalers at end-of-run
    usually add up to slightly more than the main normalization scaler
    (which is not gated by helicity). This is because the helicity
    scaler doesn't receive a gate veto from the (new) trigger supervisor
    (TS). We reduced this problem by moving the clear of this helicity
    scaler to the last line of the "go" routine, but it is still not
    precisely correct because the readout routine is asynchronous to
    the TS gate. The way to make it correct is to make an "and" to
    the gate from TS -- something we've done for helicity experiments
    in the past. I leave it alone for now. Note, the main normalization
    scaler *IS* gated by TS already, and this is what you care about.