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