On statistics of time-to-amplitude converter systems in photon counting devices

Abstract

Applying methods of statistics to photon counting in measuring a simple exponential decay with a time-to-amplitude converter and multichannel analyzer device shows that the histogram obtained is distorted due to the process of signal sampling. The distortion depends on count rate and life time. The distortion is biggest in the initial part of the histogram, whereas at times much greater than the decay time the histogram shows the real decay curve. © 1974 The American Institute of Physics.