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    User name Carlos

    Log entry time 17:53:01 on October 28, 2010

    Entry number 337199

    keyword=Dead time study with buffering

    I propose the following runplan to test deadtime in buffering mode:
    
    1) Turn OFF calorimeter HV
    
    2) Coda configuration: ROC1417Buff, ps5=1 all others 0
    
    3) Take 10min-long runs at the following beam currents on the 15cm LH2 
    target: 1.0 uA, 2.0uA, 3.0uA, 4.5uA
    
    4) Just before stopping EACH run, please log:
      i) scaler rates 
     ii) runcontrol window (CODA)
    iii) ROC 14 and ROC 17 telnet windows
    
    5) Turn ON calorimeter HV, and come back to production (CODA: DVCSTrig,
    ps5=1, all others 0)
    
    Estimated time: 50min
    
    Please start the runs only when the desired current is been achieved. If
    the beam has been very unstable (more than 5 trips in 10min), please
    repeat the run.
    


    A copy of this log entry has been emailed to: efuchey@jlab.org, itard@jlab.org