NaI(Tl)晶体对核废水中典型核素的γ能谱响应的MC模拟  

The effect of NaI(Tl)crystals on typical nuclides in nuclear wastewaterγMC simulation of energy spectrum response

作　　者：杨奎 黄岩 陈浩峰[1,2] 彭江英 YANG Kui;HUANG Yan;CHEN Haofeng;PENG Jiangyin(Jiangsu Aviation Ground Detection and Intelligent Perception Engineering Research Center,Nanjing 210049,China;Jiangsu Geological Exploration Technology Institute,Nanjing 210049,China)

机构地区：[1]江苏省航空对地探测与智能感知工程研究中心,江苏南京210049 [2]江苏省地质勘查技术院,江苏南京210049

出　　处：《中国高新科技》2024年第17期40-41,47,共3页

基　　金：江苏省地质局科研项目“航空多源遥感数据融合与智能化信息提取及应用研究”(项目编号:2023KY11)。

摘　　要：文章通过蒙特卡洛方法(MC)模拟了NaI(Tl)晶体探测器对核素^(137)Cs、^(134)Cs、^(60)Co的γ能谱响应。模拟数据结合我国与WHO海水中的核素浓度标准值进行高斯展宽拟合。结果表明,NaI(Tl)晶体探测器能够甄别出这三种核素发出的大部分γ能谱能量峰。随着核素浓度的变化,能量响应曲线也表现出很大的差异。This paper simulates the effect of NaI(Tl)crystal detector on nuclides 137Cs,134Cs,and 60Co in nuclear wastewater using Monte Carlo method(MC)γSpectral response.The simulated data were combined with the standard values of nuclide concentrations in seawater of China and WHO for Gaussian broadening fitting.The results indicate that NaI(Tl)crystal detector can distinguish most of the energy peaks of the gamma spectrum emitted by these three nuclides.The change of nuclide concentration will also lead to great changes in the energy response curve.

关 键 词：放射性 蒙特卡洛 Γ能谱 

分 类 号：TL99[核科学技术—核技术及应用]