辐射防护2024，Vol.44Issue(6)：595-600,6.
基于不同大气稳定度分类方法的核电厂事故剂量评价
Dose assessment for nuclear power plant accident based on different stability classification method
王一川 1李帷 1王悦斌 1李洋 1巩建业2
作者信息
- 1. 生态环境部核与辐射安全中心,北京 102401
- 2. 生态环境部核与辐射安全中心,北京 102401||华能山东石岛湾核电有限公司,山东 威海 264300
- 折叠
摘要
Abstract
The short-term atmospheric dispersion factors under four different classification methods of atmospheric stability were calculated by using PAVAN program,and the dose at the boundary of exclusion area(500 m)and planning restricted area(5 km)under the postulated siting accident was calculated.The result shows that the value of the short-term atmospheric dispersion factor under the Richardson number method is the smallest,while the value under the ΔT/U method is the largest.The value of the maximum individual effective dose on the exclusion area boundary(2 hour after the accident)and value at the planning restricted area boundary during the postulated siting accident satisfied the requirement of GB 6249,and the value of the dose was also the smallest under the Richardson number method,the largest under the ΔT/U method.The maximum value is about 1.6 times the minimum value.For the environmental impact assessment,it should be paid more attention to the influence of different atmospheric stability classification method on the dose evaluation of postulated siting accident.关键词
大气稳定度/短期大气弥散因子/选址假想事故/剂量Key words
atmospheric stability/short-term atmospheric dispersion factor/postulated siting accident/dose分类
资源环境引用本文复制引用
王一川,李帷,王悦斌,李洋,巩建业..基于不同大气稳定度分类方法的核电厂事故剂量评价[J].辐射防护,2024,44(6):595-600,6.
