| TH-PPLCT防护铅罐屏蔽效果的模拟与研究 |
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| 引用本文： | 刘洋,游泳,刘义保,朱佳山.TH-PPLCT防护铅罐屏蔽效果的模拟与研究[J].CT理论与应用研究,2010,19(1):48-55. |
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| 作者姓名： | 刘洋 游泳 刘义保 朱佳山 |
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| 作者单位： | 东华理工大学核资源与环境教育部重点实验室,南昌,330013;东华理工大学核工程技术学院,江西,抚州,344000 |
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| 基金项目： | 教育部科学技术研究项目 |
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| 摘 要： | 本文利用Geant4模拟了FD3013数字γ辐射仪探测器探测晶体,对137Cs(0.661MeV)的γ射线的探测效率,和TH-PPLCT教学仪防护铅罐对137Cs源的防护效果,并建立了简易人体模型,仿真计算了人体吸收剂量,结果显示防护铅罐屏蔽后的辐射剂量在可接受的水平内。
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| 关 键 词： | Geant4 蒙特卡罗模拟 探测效率 吸收剂量 |
The Simulation and Study on the Protection Lead tin of TH-PPL CT |
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| LIU Yang,YOU Yong,LIU Yi-bao,ZHU Jia-shan.The Simulation and Study on the Protection Lead tin of TH-PPL CT[J].Computerized Tomography Theory and Applications,2010,19(1):48-55. |
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| Authors: | LIU Yang YOU Yong LIU Yi-bao ZHU Jia-shan |
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| Institution: | 1. Key Laboratory of Nuclear Resources and Environment, East China Institute of Technology, Ministry of Education, Nanchang 330013, China ;2. School of Nuclear Engineering and Technology, East China Institute of Technology, Jiangxi Wuzhou 344000, China) |
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| Abstract: | This paper simulates the detection efficiency of the detector crystal of FD3013 digital gamma ray radiation instrument to 137Cs gamma source using Monte Carlo simulation tool kit Geant4. The protection lead tin＇s protective effect of TH-PPL CT teaching instrument is also studied. To simulate the tnmk dosage, a simple trunk model is established, the simulation results show that the protective effect is acceptable. |
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| Keywords: | Geant4 |
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