计算物理 ›› 2001, Vol. 18 ›› Issue (3): 285-288.

• 论文 • 上一篇    

反应堆孔道屏蔽计算的蒙特卡罗方法

江新标1, 陈达1, 谢仲生1, 张颖2   

  1. 1. 西安交通大学, 陕西 西安 710049;
    2. 西北核技术研究所, 陕西 西安 710024
  • 收稿日期:1999-09-13 修回日期:2000-02-21 出版日期:2001-05-25 发布日期:2001-05-25
  • 作者简介:江新标(1967-),男,江苏如东,助研,博士生,从事反应堆物理和核技术应用方面的研究.

MONTE CARLO METHOD FOR REACTOR DUCT SHIELDING CALCULATION

JIANG Xin-biao1, CHEN Da1, XIE Zhong-sheng1, ZHANG Ying2   

  1. 1. Xi'an Jiaotong University, Xi'an 710049, P R China;
    2. North-west Institute of Nuclear Technology, Xi'an 710024, P R China
  • Received:1999-09-13 Revised:2000-02-21 Online:2001-05-25 Published:2001-05-25

摘要: 建立临界源方向偏倚和指数变换相结合的耦合抽样方法,用于反应堆孔道的屏蔽计算.提出了算例问题的最佳源方向偏倚参数p1和指数变换参数p2,得到的耦合抽样方法更能有效降低计算结果的方差.校算了中国核动力院脉冲堆的切向孔道,其中耦合抽样方法的计算结果更接近于实验测量值.

关键词: 蒙卡方法, 临界源方向偏倚, 指数变换法

Abstract: The sampling method by coupling criticality source direction biasing and the exponential transform is established for duct shielding calculation.In sample problem studying,the optimal source direction biasing parameter p1、exponential transform parameter p2 are supposed and the variance of duct calculating results by using this method is shown to reduce efficiently.Correction calculation for the duct of Nuclear Power Institute of China (NPIC) pulsed reactor shows the results are more close to the measured ones.

Key words: Monte Carlo method, criticality source direction biasing, exponential transform

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