So I understand what happens in the crystal with respect to the interactions and how the electrons in PMT are multiplied by hitting dynodes etc. But what I can't really seem to find any information on is how the circuitry in the scintillation detectors converts the electric pulses or voltages to counts?
I understand that the eV is the unit for the amount of energy of the electrons, but how is that being converted to count rate? I can only think that there is something converting the peak voltage in the electronic circuit to the count, so say 100KeV=2000 counts for example.
Is there a mathematical relationship, and is the conversion done within the circuitry or is it done by the software?
I have read something about a thing called a multi-channel analyser but I don't really understand what it does or how it contributes.