摘要
核电厂事故情况下,气载放射性物质沉积导致的地面照射剂量是场外公众辐射剂量的重要组成部分。本文选取^(90)Sr、^(137)Cs和^(239)Pu等核素,结合其物理去除作用以及再悬浮过程,分析了核电厂事故后地面照射中沉积外照射和再悬浮吸入内照射所致的公众辐射剂量随时间的变化规律。
Airborne radionuelides released from nuclear power plant after accidents can be deposited onthe ground. Ground exposures can become an important part of offsite public exposure. The projectedpublic doses of 60Co, 137Cs and 90Sr, resulted from ground exposures are evaluated in this paper,including external exposure from ground shine and inhalation of resuspended material with radionuclidesphysical removal and resuspension processes considered.
出处
《辐射防护》
CAS
CSCD
北大核心
2016年第4期197-199,210,共4页
Radiation Protection
关键词
核电厂
核事故
放射性核素
地面照射
nuclear power plant
nuclear accident
radionuclides
ground exposures
