计算物理 ›› 2002, Vol. 19 ›› Issue (3): 253-258.

• 论文 • 上一篇    下一篇

特征γ谱蒙特卡罗模拟方法的改进

邓力1, 谢仲生2   

  1. 1. 北京应用物理与计算数学研究所计算物理实验室, 北京 100088;
    2. 西安交通大学能动学院核能工程系, 陕西 西安 710049
  • 收稿日期:2000-10-13 修回日期:2001-04-28 出版日期:2002-05-25 发布日期:2002-05-25
  • 作者简介:邓力(1960-),男,四川,副研,博士,从事粒子输运蒙特卡罗方法及应用研究.
  • 基金资助:
    中国工程物理研究院基金资助项目

IMPROVEMENT OF THE CHARACTERISTIC γ SPECTRUM MONTE CARLO SIMULATION METHOD

DENG Li1, XIE Zhong-sheng2   

  1. 1. Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, P R China;
    2. Department of Nuclear Energy and Engineering, Xi'an Jiaotong University, Xi'an 710049, P R China
  • Received:2000-10-13 Revised:2001-04-28 Online:2002-05-25 Published:2002-05-25

摘要: 针对中子-γ耦合输运问题,采用蒙特卡罗统计估计和期望值技巧,分别计算了被探测物的总能谱、时间谱和每个元素的特征γ谱,并与MCNP程序结果进行了对比.

关键词: 蒙特卡罗, 统计估计, 期望值技巧, 特征γ

Abstract: The Statistical Estimator (SE) and the Expected Value Technique (EVT), which belong to the range of Monte Carlo method, have been introduced and are used to simulate the coupled neutron and gamma transportation.The total γ energy spectrum,the time spectrum and the characteristic γ spectrum of each element of the detected objects can be obtained respectively by using the two techniques.The validation of the new method is proved by the comparison with the results of the coupled neutron and gamma Monte Carlo code MCNP.

Key words: Monte Carlo, statistical estimator, expected value technique, characteristic γ spectrum

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