Log entry time 12:47:15 on January31,2008

Entry number 228323

This entry is a followup to: 228155

FADC integration run 60337 was taken with the Compton laser off and the 
electron beam NOT routed through the Compton chicane. I calculated all three 
accumulator asymmetries (acc1, acc3, acc5 -- see Fig. 1) and found that they 
were consistent with zero, as one would hope.

Note that, although the laser diode was turned off, the only asymmetry 
histograms that were filled were for cavity "on." The cut was made on the 
real-time cavity power variable. Fig. 2 shows a plot of the EPICS cavity power 
variable, which shows a mean cavity power of 68 mW. This is consistent with the 
values EPICS is showing today for a laser diode that is off. This seems to 
indicate a problem with the real-time variable.