User name Ramesh
Log entry time 01:57:00 on March15,2005
Entry number 141515
keyword=Raw ADC vs TDC of ND for Run 2665Below are two displays showing raw adc(vertical axis) versus tdc(horizontal axis) spectrum for left pmts (fig 1) of plane 1 and for left pmts (fig 2) of plane 4. This run (2665 in C-tilted target in 40uA beam) is after the new delay (12 ns) added in adc gate.
Interesting thing ,at least to me, is that I see a sharp dense vertical line in each histogram of all planes (all pmt) at EXACTLY 800 channel number (400 ns in time value) for ALL. I did not see this thing for the deuterium runs though.
FIGURE 1
FIGURE 2
