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    User name Higinbotham

    Log entry time 19:38:19 on February 23, 2011

    Entry number 348328

    This entry is a followup to: 348322

    keyword=Q3 Back to normal running

    We should be running Q3 with normal current. It was only with the ~3 GeV/c momentum setting that we had to use the distorted optics. Vince will cycle it twice and get us into production running.

    Note we should take a nice long series of runs with fixed conditions. Pick the current based on the rates you are seeing. The 4cm deuteron target is ~800 mg/cm2 so it is ~7 times thicker then the 120 mg/cm2 we used last experiment. (i.e 3 uA on 800 mg/cm2 = 20 uA on 120 mg/cm2) Last time we were able to handle 35 uA on 120 mg/cm2, so we should be able to goto 5-6 uA as per the run plan.



    A copy of this log entry has been emailed to: vasulk@jlab.org, kalyan@jlab.org, kelleher@jlab.org, rshneor@jlab.org, eip@jlab.org