用MC方法计算铅玻璃对核材料γ射线的屏蔽作用  

Calculation of Shielding Effect of Plumbum Glass on γ Ray of Nuclear Material by MC Method

作　　者：税举[1] 何彬[1] 王冬[1] 付广智[1] 李如松[1] 周百昌[1] 

机构地区：[1]第二炮兵工程学院,陕西西安710025

出　　处：《原子核物理评论》2007年第1期40-42,共3页Nuclear Physics Review

摘　　要：核材料辐射出的γ射线对人体有很强的辐射损伤,实际工作中多用铅玻璃对其进行屏蔽。以甲状腺为研究对象,应用蒙特卡罗方法通用软件MCNP4B程序建立模型,模拟计算了操作人员在操作核弹头时,弹头中产生的γ射线透过各种厚度的铅玻璃时人体甲状腺吸收剂量率。结果表明,铅玻璃确有良好的降低γ射线吸收剂量率的作用。The y ray which is radiated from a nuclear material can cause serious radiation damage to human organs, so lead glass are often used as a shielding material. In this paper, thyroid was the subject investigated. A mathematical model was established by using the general software code MCNP4B. We have calculated a series of thyroid＇s absorbed dose rate when the γ ray which was generated from the warhead penetrated the various depths of the lead glass via the model. The results indicate that lead glass work well as a protector against γ rays.

关 键 词：铅玻璃 Γ射线 甲状腺 吸收剂量率 蒙特卡罗模拟 

分 类 号：O571.32[理学—粒子物理与原子核物理]