Log entry time 21:02:33 on April 04, 2012

Entry number 370060

Followups:

• 370534 04/05/12 21:00 R. Zielinski Follow Up for High Deadtime Effect on normalization

By chance today, I noticed a difference in normalized yields depending on the deadtime. I found 
one run that had a deadtime > 30%. This run's normalized yield doesn't agree with others at the 
same setting with more reasonable deadtimes. 

It's hard from this quick analysis to determine a rate where this definitely becomes a problem but 
keeping the rate below the maximum DAQ rate which is probably a little under 8 kHz (I can't 
recall off the top of my head, but a maximum of 7 kHz most likely safe) and deadtime <20% 
should help. 

Figure 1