User name johna
Log entry time 19:18:46 on November 4,2001
Entry number 75844
keyword=Low ADC threshold for HRS-R S1 ADC #2.From the hodoscope hit distributions (figure 1), we see a 'hot' ADC channel (right side PMT for paddle #2, S1 on the hadron side has too many ADC hits). Looking at the raw ADCs (figure 2) we see that this ADC channel (2nd column, 2nd plot from top) has lots of excess counts near pedestal. So the 'hot' channel just comes from the fact that the ADC sparsification threshold is a little bit low. We may want to update the pedestal values at some ponit.
FIGURE 1
FIGURE 2
