User name D. Parno
Log entry time 00:44:13 on January28,2008
Entry number 227613
keyword=FADC Compton edge varies with PMT voltage1st picture: PMT voltage = -2200 V. Beam current = 60 uA. Compton edge just under 2000 in hint (area under pulses). Run 60249. 2nd picture: PMT voltage = -2300 V. Beam current = 60 uA. Compton edge just about 3000 in hint. Run 60251. Blue line = events with Compton laser cavity on Red line = events with Compton laser cavity off Two more high voltages in next post.
FIGURE 1
FIGURE 2
