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User name adaq
Log entry time 09:11:12 on November 3,2008
Entry number 246415
This entry is a followup to: 246414
Followups:
keyword=Noise in BB wirechamber 2 and 3We saw lot of noise in the middle and back chamber even without HV turned on. Below is a plot showing hit pattern when the HV was turned off(left) and with HV on (right). THe noise seem to go away when we increased the threshold on middle and back chamber from 3.5V to 8V. We think it could be A/D card power supply. Need to check when we get in the hall.
FIGURE 1
FIGURE 2
