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    User name M. Cummings

    Log entry time 15:34:22 on March 04, 2012

    Entry number 363653


    keyword=RHRS VDC

    On Vince's suggestion, I took a closer look at the VDC data from the last cosmic run where the 
    VDC efficiency appears to be ok.  This run (#21668) was taken with cosmics on the owl shift 
    friday morning (~00:00 - 09:30).  
    The full run contains 169449 events.  The attached plots are from the first 50,000 events of the 
    run.  At this point it looks like the efficiency is still ok.

    A copy of this log entry has been emailed to: vasulk,rom,melissac,bodganw,jpchen,slifer,rbziel,camsonne,segal,yez, kalyan

    Figure 1

    Figure 2

    Figure 3

    Figure 4