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    User name Bo/Vince

    Log entry time 19:43:39 on May 11, 2009

    Entry number 272630

    keyword=Update on checking ROC8 busy signal

    Vince and I check R-arm buffered DAQ with ROC8 busy signal after the
    daily meeting. We still have the same problem: R-arm DAQ is busy all the
    time when pluging ROC8 busy. We see a 40 us ROC8 busy signal, which is
    different to that 12 us wide signal in this morning when R-arm buffered
    DAQ was working.
    We unplug the run-gate from L-arm. In fact R-arm DAQ is running
    independently now. We even unplug the inhibit singal of TS, but still
    have the same problem. We also test with a new TwinAx cable from Ed, but
    it is not an issue of TwinAx cable in fact. It is strange that the ROC8
    busy signal is 12 us long in this morning, but 40 us long in the afternoon.


    A copy of this log entry has been emailed to: vasulk, rom, moffit, doug, jastrzem