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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