Make New Entry, Make Followup Entry
User name X. Zheng
Log entry time 11:19:35 on November 13, 2009
Entry number 299516
This entry is a followup to: 299503
keyword=proper cuts should be applied hereI was reminded that the ADC gate of the spectrometer DAQ is only about 400ns. So when plotting ADCs of any detector, it's important to cut on some TDCs to make sure the signal you are plotting is within the ADC gate. Otherwise the amplitude will be zero, or at least much smaller than what the real signals are.
Here is a plot similar to the previous entry for run #4984. But when
making the blue and red plot I added D.evtype==1 and also used smaller
TDC cuts, from 300 to 800. (300 is about where the ADC gate stops as
shown in halog #299374), and there is usually barely any signal above
800. The red now agrees well with the blue.
Figure 1
