Log entry time 22:22:32 on August20,2009

Entry number 285075

Followups:

• 285076 08/20/09 22:32 silwal correction on the y-axis: y-axis is the baseline ADC channels, not diff on - diff off

typical LED baseline signal with increasing frequency. On the x-axis are the 
DAC16 values. DAC16 28000 coresponds to about 7.5 Khz, and DAC16 50500 
corresponds to about 750 Khz. Get the same pattern at different pulse heights. 
HV = -1200 V on det. 
run # 11486 & 11496: both diff and baseline LED inside the det, and pulsing.
run # 11489: diff LED outside, baseline LED inside, both pulsing.