User name gilman
Log entry time 10:48:24 on May18,2006
Entry number 173768
keyword=FPP cosmic test run 4675I finally remeber to turn on the level shifters, and in brief test run 4674 it looks like the event size has dropped from 1.5 kB/event to about 0.5 kB/event. The FPP is now all on, at 1750 Volts, and stable EXCEPT: the lower ch 4 LV is not yet stably connecting. We will come back after lunch and try to get it right. In the data
for run 4675, this means that most (all?) of one of the U's or V's, should be okay, but (almost?) none of the others. I believe one of the chamber 4 supplies powers most of one orientation, the other powers the rest and all of the other. But I do not recall which is which.
FIGURE 1
FIGURE 2
