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同位素铯源小尺度参考辐射蒙特卡罗模拟研究
引用本文:徐阳,魏彪,刘易鑫,冯鹏,卓仁鸿,文德智,丁大杰,毛本将.同位素铯源小尺度参考辐射蒙特卡罗模拟研究[J].原子能科学技术,2017,51(3):522-528.
作者姓名:徐阳  魏彪  刘易鑫  冯鹏  卓仁鸿  文德智  丁大杰  毛本将
作者单位:1.中国工程物理研究院 核物理与化学研究所,四川 绵阳621900;2.重庆大学 光电技术及系统教育部重点实验室,重庆400044
摘    要:为研究同位素铯源小尺度参考辐射的计量特性与散射特征,采用蒙特卡罗程序MCNP开展了模拟研究,并将模拟结果与实验结果进行对比。本文厘清了边长为600mm的铅屏蔽立方体同位素铯源小尺度参考辐射的计量特性与空间散射射线的特征信息,明确了待检仪器探头尺寸对小尺度参考辐射中散射成分的影响规律,确定了用于表征散射特征的计量特征点的位置。

关 键 词:参考辐射    &gamma    射线剂量    蒙特卡罗模拟    辐射防护

Monte Carlo Simulation Research of 137 Cs Minitype Reference Radiation
XU Yang,WEI Biao,LIU Yi-xin,FENG Peng,ZHUO Ren-hong,WEN De-zhi,DING Da-jie,MAO Ben-jiang.Monte Carlo Simulation Research of 137 Cs Minitype Reference Radiation[J].Atomic Energy Science and Technology,2017,51(3):522-528.
Authors:XU Yang  WEI Biao  LIU Yi-xin  FENG Peng  ZHUO Ren-hong  WEN De-zhi  DING Da-jie  MAO Ben-jiang
Affiliation:1.Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;2.Key Laboratory of Opto electronics Technology & System, Ministry of Education, Chongqing University, Chongqing 400044, China
Abstract:In order to research the metrological and scattering features in a minitype ref-erence radiation (MRR) with isotope cesium source ,the Monte Carlo program MCNP was used to simulate and analyze the MRR .Comparison between simulation and experi-ments was also carried out in the work .The metrological and scattering radiation char-acteristics of the MRR ,which is a 600 mm cubic box shielded by lead with isotope cesi-um source ,are clarified in this paper .T he influence of the probe size on the scattering components in an M RR is defined .T he position of the metrological feature point used to characterize the scattering feature is also determined by the work .
Keywords:reference radiation  γ ray dose  Monte Carlo simulation  radiation protec-tio n
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