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User name E.Chudakov
Log entry time 02:00:27 on November 27, 2008
Entry number 250992
This entry is a followup to: 249426
keyword=Moller on Nov 17 - possible beam energy changeA 2.5% drop in polarization detected during the measurement on Nov 17
happened at about 17:20, the first "low" run started at 17:18. Here the
Hall A beam energy chart with the Fast Feedback status for the given
period are attached.
It seems the average energy dropped by about 1 MeV. The equivalent
polarization drop depends on the absolute energy. For 5893 MeV, the drop
would be 2%.
A copy of this log entry has been emailed to: doug@jlab.org, glamazdi@jlab.org
Figure 1
