Count Rate of a Detector in Scintillator

[Silviu]

Hello! How is the count rate of a detector defined (I need for a scintillator)? It is just the number of particle hitting the detector per second times the efficiency of the detector at that energy?

 

[mfb]

It is just the rate of detections, the number of detections per time. If you don't have relevant dead times, it is the number of particles hitting the detector times the efficiency.

 

[ChrisVer]

How is the count rate of a detector defined (I need for a scintillator)

The words speak for themselves sometimes, it is the number of counts (count) per unit of <something> (rate)...

Now how would you go about to model this for a detector?
If you have $N$ incident particles per <something> and you measure $N'$, how is $N'$ and $N$ related?
$N' = \frac{N'}{N} N$
the fraction is nothing else than the total efficiency (it can be affected by several sources).