计算物理 ›› 2010, Vol. 27 ›› Issue (1): 15-22.

• 研究论文 • 上一篇    下一篇

由X射线成像反推核爆当量的蒙特卡罗模拟

刘志亮1,2, 毛用泽2   

  1. 1. 防化指挥工程学院科研部, 北京 102205;
    2. 防化研究院第二研究所, 北京 102205
  • 收稿日期:2008-08-05 修回日期:2009-04-30 出版日期:2010-01-25 发布日期:2010-01-25
  • 作者简介:刘志亮(1979-),男,湖南永兴县,助研,博士生,从事核爆炸效应现象学与探测技术方面的研究,北京市1044信箱203号102205.

Monte Carlo Simulation on Equivalent of Nuclear Explosion Using X-ray Imaging

LIU Zhiliang1,2, MAO Yongze2   

  1. 1. Institute of Chemical Defense, Beijing 102205, China;
    2. Research Institute of Chemical Defense, Beijing 102205, China
  • Received:2008-08-05 Revised:2009-04-30 Online:2010-01-25 Published:2010-01-25

摘要: 初步探讨利用X射线成像反推核爆当量.建立特征环小孔几何模型,采用MCNP4C进行模拟,从模拟源面积,Ec的选取,环宽、等效温度及X射线入射角度的影响等方面对蒙特卡罗模拟进行讨论.在模拟时宜选取源面积S0=6.25π cm2、能量截断值Ec=2×10-8 MeV,需考虑能量响应和角度响应.对等效温度为1.4 keV和3.8 keV、X射线入射角度为0°,1°,2°,3°,4°,5°,6°的特征环小孔模型分别进行模拟,给出根据这些模拟结果反推核爆当量的具体方法.

关键词: X射线, 成像, 核爆当量, 蒙特卡罗模拟

Abstract: Using X-ray imaging to deduce equivalent of nuclear explosion is preliminarily discussed.A characterized ring pinhole geometry model is established.MCNP4C is used.The source area,determinaton of Ec,influence of ring width,equivalent temperature and incident angle of X-rays are simulated.It is poined out that the source area should be selected as S0=6.25πcm2 and Ec=2×10-8 MeV.Energy response and angle response should be considered.Characterized ring pinhole models at equivalent temperatures 1.4 keV and 3.8 keV and at incident angles 0,1,2,3,4,5,6 degree are simulated.

Key words: X-ray, imaging, equivalent of nuclear explosion, Monte Carlo simulation

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