γ辐射场轴向空间分布随源条件变化规律的计算分析  

Calculating Analysis on Character of Linear Spatial Distribution of Gamma Radiation Field with Diverse Source Condition

作　　者：张连平[1] 韦孟伏[1] 吴伦强[1] 

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《核电子学与探测技术》2012年第6期668-671,共4页Nuclear Electronics & Detection Technology

摘　　要：放射性材料的自发γ辐射场中包含有该材料的形状信息,探索γ辐射场分布与放射性材料形状的关联性对于材料对称性属性的被动测量具有重要意义。论文采用Monte Carlo方法对特定形状的放射性材料的γ辐射场进行了模拟,计算了不同形状、大小、不同自吸收层厚度等条件下源的γ辐射场轴向空间分布,分析了形状、大小等因素对γ轴向空间分布曲线走势的影响,解释了计算结论。The massage of shape has been comprised in the gamma radiation field of radioactive material,exploring the relationship between the distribution of gamma radiation field and the shape of radioactive material has great significance for passive measurement of symmetry attribute.The gamma radiation field of nuclear assembly with special shape has been simulated by Monte Carlo method,the linear spatial distribution of gamma radiation field with different shape,size and the thickness of plutonium material has been calculated,and the relationship between linear spatial distribution and these different factors has been summarized,and the result of calculation has been explained.

关 键 词：蒙特卡罗方法 γ辐射场 源条件 

分 类 号：O242.2[理学—计算数学]