User name V. Sulkosky
Log entry time 19:04:35 on November 8,2007
Entry number 213031
keyword=LHRS Gas CerenkovFigure 1 shows the left gas Cerenkov after the HV changes, I made
yesterday for cosmic run # 2089. The single photo-electron peaks for
the PMTs are mostly aligned now. PMT #10 is still too high, so I
reduced it's HV by another 40 volts. I also made small changes to
PMTs 1, 2, 4 and 5 to move them closer to channel 160.
PMT # Single Photo-electron Peak
-----------------------------------
1 168
2 169
3 160
4 167
5 169
6 162
7 158
8 154
9 164
10 202
FIGURE 1
