期刊论文

Performance of Shielding Gamma Radiation Based on MCNP

中文

南华大学学报(自然科学版)

1673-0062

2015

2

57-62

10.19431/j.cnki.1673-0062.2015.02.013

湖南省重大专项基金资助项目（2012FJ1007-1）； 湖南省自然科学基金资助项目（11JJ4035）；

本校为第一机构

采用蒙特卡罗软件MCNP5程序建立挖掘机安全作业舱及内部驾驶人员实验模型,研究在辐射源（钴-60）类型不同和源距不同的情况下,不同材料及不同结构的安全作业舱屏蔽γ射线的能力.分析讨论人体各部位剂量率值以评价安全作业舱的屏蔽效果,并依据电离辐射防护与辐射源安全基本标准（GB18871—2002）规定的工作人员的照射水平应低于0.01 m Sv/h的剂量限值,确定安全作业舱结构的设计方案.此次研究为挖掘机驾驶舱屏蔽设计提供必要的研究数据和设计依据,使驾驶舱在野外高放射环境下能够有效地屏蔽γ射线,保护驾驶人员的辐射屏蔽安全.

Excavator safety chamber for work and internal driver experimental models are constructed in a Monte Carlo program MCNP5 code, and the different types of radiation source and various of sources have effect on the dose ratios of different parts of human. In different situations, the different materials and different structure of security chamber for work can also affect the ability of shielding gamma rays performance. This paper analyzes the dose ratios of every part of human body to evaluate the shielding gamma rays perform-ance of safety chamb...