Efficient Monte Carlo simulation of delayed activation analysis experiments

Raffaele Bencardino; Greg Roach; James Tickner; Josef Uher

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Efficient Monte Carlo simulation of delayed activation analysis experiments

机译：延迟激活分析实验的有效蒙特卡洛模拟

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An approach is described for efficiently modelling delayed activation analysis experiments, where radioactivity is induced in a sample through irradiation with neutrons or gamma-rays and subsequently measured by a separate detection system. The continuous single-history method is used, in which a single computer code tracks both the initial irradiation quantum and the decay products of any induced radioactive nuclei in a single event using Monte Carlo methods. Key aspects of the approach include the forcing of both the irradiation and decay processes to improve efficiency and the ability to simulate complex radioactive decays producing multiple, coincident decay products. The method has been implemented in the general-purpose EGSnrc code. A comparison with experimental results for the photoactivation of a gold foil is presented.

机译：描述了一种有效地建模延迟激活分析实验的方法，其中通过中子或伽马射线辐照在样品中诱导放射性，然后由单独的检测系统进行测量。使用连续单历史方法，其中单个计算机代码使用蒙特卡洛方法在单个事件中跟踪初始辐照量和任何诱导的放射性核的衰变产物。该方法的关键方面包括强迫辐照和衰变过程以提高效率，以及模拟产生多个重合衰变产物的复杂放射性衰变的能力。该方法已在通用EGSnrc代码中实现。提出了与金箔光活化实验结果的比较。

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来源
《Nuclear instruments and methods in physics research》 |2010年第5期|p.513-518|共6页
作者
Raffaele Bencardino; Greg Roach; James Tickner; Josef Uher;
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作者单位

CSIRO Minerals, PMB 5, Menai, NSW 2234, Australia;

CSIRO Minerals, PMB 5, Menai, NSW 2234, Australia;

CSIRO Minerals, PMB 5, Menai, NSW 2234, Australia;

CSIRO Minerals, PMB 5, Menai, NSW 2234, Australia;

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原文格式 PDF
正文语种 eng
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关键词
Monte Carlo; instrumental activation analysis; variance reduction;

机译：蒙特卡洛;仪器活化分析;方差减少;

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Efficient Monte Carlo simulation of delayed activation analysis experiments

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