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http://dx.doi.org/10.5516/NET.2011.43.3.287

COUNTING STATISTICS MODIFIED BY TWO DEAD TIMES IN SERIES  

Choi, H.D. (Department of Nuclear Engineering, Seoul National University)
Publication Information
Nuclear Engineering and Technology / v.43, no.3, 2011 , pp. 287-300 More about this Journal
Abstract
Counting statistics modified by introducing two dead times in series under a Poisson input distribution are discussed. A previous study examined the two cases of series combinations of nonextended-extended (NE-E) and extended-extended (EE) dead times. The present study investigated the remaining two cases of extended-nonextended (E-NE) and nonextended-nonextended (NE-NE) dead times. For the three time origins of the counting processes - ordinary, equilibrium, and shifted processes - a set of formulae was newly developed from a general formulation and presented for the event time interval densities, total densities, and exact mean and variance of the counts in a given counting duration. The asymptotic expressions for the mean and variance of the counts, which are most convenient for applications, were fully listed. The equilibrium mean count rates distorted by the three dead times in series were newly derived from the information obtained in these studies. An application of the derived formulae is briefly discussed.
Keywords
Nuclear Counting; Counting Statistics; Dead Time; Dead Times in Series;
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