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    User name R. Michaels

    Log entry time 10:29:11 on July31,2006

    Entry number 176511


    keyword=Charge asymmetry feedback results

    The charge asymmetry feedback script became "self aware" at 18:22
    on July 25. Since then it has run continuously, producing results
    in fig 1. The average Qasy is -5.6 ppm, the RMS is 240 ppm. This
    should be fine for LEDEX, and probably fine for G0 (they worry about
    the Hall A beam). The RMS would be ~10 times smaller if we used the
    HAPPEX DAQ. I think I can make the RMS smaller and eradicate the
    outliers using the present scaler DAQ -- and so I will try.

    Fig 2 shows a typical result from one recent run. There are
    4 monitors which agree.
    See also qasy.html

    FIGURE 1

    FIGURE 2