基于活度危险值的放射源分类

DANGEROUS QUANTITIES OF RADIOACTIVE SOURCES

本文介绍了2001年以来国际原子能机构(IAEA)发布的关于放射源分类方法的研究进展情况及我国的有关规定。介绍了上述分类法的技术背景资料,包括放射源活度危险值(D值)的概念、为确定放射源活度危险值而设定的照射情景、计算D值所需的情景参数和剂量转换系数,以及对选用的D值的评述,以求对已发布的此项国家职业卫生标准有一个较全面的了解。

This papaer introduces the situation of research and development on categorization of radioactive sources issued by IAEA since 2001 and the relevant national regulation. And the technical background materials were also provided, including the human health effects caused by the dangerous sources, the exposure scenarios for determining D-Values, the scenarios parameters and the dose conversion factors needed for calculating D-Values, and the analysis or evaluation for the selected D-Values aiming at comprehensively understanding an new National Occupational Hygiene Standard with respect to this topic.