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

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.