Make New Entry, Make Followup Entry
User name R. Michaels
Log entry time 14:38:38 on March17,2014
Entry number 386916
This entry is a followup to: 386909
keyword=BPM pedestals, part 2Followup. The crew chief said he actually made the whole IOC forced gain=0,
so both 4A and 4B would be affected. This explains the last HALOG 386909
Now go to autogain again.
Runs 1157 and 20195
Below I show for a typical channel the difference between pedestal and
the signal in autogain mode. For R-HRS the pedestals look clean. For L-HRS
there is a shift between gain=0 and autogain, but the pedestals are noisy.
Next, try forced gain=0 again on L-HRS, maybe we started the run too early (?).
Otherwise, maybe there is some noise on L-HRS.
FIGURE 1
FIGURE 2
