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。
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.
出处
《CT理论与应用研究（中英文）》
2010年第1期48-55,共8页
Computerized Tomography Theory and Applications
基金
教育部科学技术研究重点项目(208067)
