User name R. Michaels
Log entry time 13:59:45 on March14,2001
Entry number 58773
Followups:
keyword=L-arm VDC efficiency, a bit lowThe left arm VDC efficiency is a bit low, see fig 1 from a recent
run 2920. It is as low as 97% in some spots. But it is not changing
since yesterday. I compared to run 2883, a run with similar high
rates (~350 kHz trigger), the difference in efficiency is small, see fig 2.
So, the inefficiency is presumably a rate effect and not getting worse.
Note, the 'dhist' effieciency plot is a bit wierd, scale is 0.0 to 0.2
which actually means 0.8 to 1.0. But it also shows this effect.
FIGURE 1
FIGURE 2
