TY - JOUR
T1 - Non-Poisson counting statistics of a hybrid G-M counter dead time model
AU - Lee, Sang Hoon
AU - Jae, Moosung
AU - Gardner, Robin P.
PY - 2007/10
Y1 - 2007/10
N2 - The counting statistics of a G-M counter with a considerable dead time event rate deviates from Poisson statistics. Important characteristics such as observed counting rates as a function true counting rates, variances and interval distributions were analyzed for three dead time models, non-paralyzable, paralyzable and hybrid, with the help of GMSIM, a Monte Carlo dead time effect simulator. The simulation results showed good agreements with the models in observed counting rates and variances. It was found through GMSIM simulations that the interval distribution for the hybrid model showed three distinctive regions, a complete cutoff region for the duration of the total dead time, a degraded exponential and an enhanced exponential regions. By measuring the cutoff and the duration of degraded exponential from the pulse interval distribution, it is possible to evaluate the two dead times in the hybrid model.
AB - The counting statistics of a G-M counter with a considerable dead time event rate deviates from Poisson statistics. Important characteristics such as observed counting rates as a function true counting rates, variances and interval distributions were analyzed for three dead time models, non-paralyzable, paralyzable and hybrid, with the help of GMSIM, a Monte Carlo dead time effect simulator. The simulation results showed good agreements with the models in observed counting rates and variances. It was found through GMSIM simulations that the interval distribution for the hybrid model showed three distinctive regions, a complete cutoff region for the duration of the total dead time, a degraded exponential and an enhanced exponential regions. By measuring the cutoff and the duration of degraded exponential from the pulse interval distribution, it is possible to evaluate the two dead times in the hybrid model.
KW - Dead time
KW - G-M counter
KW - Hybrid model
UR - http://www.scopus.com/inward/record.url?scp=34548815914&partnerID=8YFLogxK
U2 - 10.1016/j.nimb.2007.04.041
DO - 10.1016/j.nimb.2007.04.041
M3 - Article
AN - SCOPUS:34548815914
SN - 0168-583X
VL - 263
SP - 46
EP - 49
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 1 SPEC. ISS.
ER -