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User name V. Sulkosky
Log entry time 19:14:50 on November 2,2007
Entry number 211758
keyword=HV Changes for RHRS
Figures 1 and 2 show the HV settings for the RHRS detectors. I
increased the HV for preshower channel 41 and shower channel 56 (see
Halog entry # 210382). This should be improved but will need be to
checked with beam.
I also adjusted the HV for the gas Cerenkov channels: 0,1,2,4,6, and
8 to align the single photoelectron peak. The peak was a bit low
compared to the odd channels. They should all be close to 100
channels above the pedestal now.
FIGURE 1
FIGURE 2