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KMID : 0364920040290040269
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Journal of Radiation Protection and Research
2004 Volume.29 No. 4 p.269 ~ p.273
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A Study on Counting Statistics of the Hybrid G-M Counter Dead Time Model Using Monte Carlo Simulations
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Lee Sang-Hoon
Je Moo-Sung
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Abstract
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The hybrid dead time model adopting paralyzable (or extendable) and non-paralyzable (or non-extendable) dead times has been introduced to extend the usable range of G-M counters in high counting rate environment and the relationship between true and observed counting rates is more accurately expressed in the hybrid model. GMSIM, dead time effects simulator, has been developed to analyze the counting statistics of G-M counters using Monte Carlo simulations. GMSIM accurately described the counting statistics of the paralyzable and non-paralyzable models. For G-M counters that follow the hybrid model, the counting statistics behaved in between two idealized models. In the future, GMSIM may be used in predicting counting statistics of three G-M dead time models, which are paralyzable, non-paralyzable and hybrid models.
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KEYWORD
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G-M counter, dead time, Monte Carlo simulation, hybrid dead time model
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