迷宫屏蔽剂量计算方法的比较研究  

A COMPARISON OF THE CALCULATION METHODS OF THE MAZE SHIELDING DOSE

作　　者：李文茜[1] 李君利[1] 李鹏宇[1] 陶颖华[1] 

机构地区：[1]清华大学工程物理系,粒子技术与辐射成像教育部重点实验室(清华大学),高能辐射成像国防重点学科实验室,北京100084

出　　处：《辐射防护》2009年第1期1-7,共7页Radiation Protection

基　　金：国家自然科学基金项目“高能质子加速器辐射防护关键问题研究”(项目编号10775084)

摘　　要：本文在NCRP第49、51和151号报告基础之上,概述了低能和高能加速器迷宫剂量率的理论计算方法。应用此种方法,分别对同方威视技术股份公司密云CT厂房的多折迷宫和军事医学科学院辐照实验室的弧形迷宫进行了理论计算。通过与现场测量实验和蒙特卡罗模拟计算结果的对比得出,该方法只要参数选取合理,对于一般迷宫剂量率的估算,可以节省大量计算时间,得到较为保守准确的结果。希望可以为今后迷宫的设计和剂量估算方法提供参考。This paper gives a theoretical calculating method for the dose rate of the maze of the lowenergy accelerators or high-energy accelerators, based on the NCRP report Nos. 49, 51 and 151. The muhi-legged maze of the Miyun CT workshop of the NUCTECH Company Limited and the are maze of the radiation laboratory of the Academy of Military Medical Sciences were calculated using this method. The calculating results were compared with the MCNP simulating results and the measured results. For the commonly estimation of the maze dose rate, as long as the parameters chosen properly, this method can give a conservative result, and save time from simulation. It＇s hoped that this work could offer a reference for the maze design and the dose estimation method in the aftertime.

关 键 词：迷宫 剂量率 加速器 辐射屏蔽 

分 类 号：R144[医药卫生—公共卫生与预防医学]