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    User name Peter L

    Log entry time 04:40:07 on June19,2004

    Entry number 126274

    keyword=Dithering BPM12x problem

    After the beam came back from the brief beam down period caused by
     hall c, position feedback was left off by MCC for a period of about
     18000 events in run 2268.  I noticed this through the dithering
     window.  We called MCC and they turned position FB back on and they
     "opened us up to all channels on IOC instead of just one" and it
     came back in the next dithering cycle.

    FIGURE 1

    FIGURE 2