摘要
核电厂辐射环境航空监测中进行空地比对是验证航测数据质量好坏的重要手段和方法,本次采用面积网格法,在研究区内的第四系沉积物区、基岩地层区和偏离测线及海陆交汇区域,选取多个监测点位开展空地比对分析,研究地面测量方法的有效性及位置选择的合理性。结果显示:第四系沉积物区监测比对点相对偏差在-8.8%~9.7%之间,基岩地层区监测比对点相对偏差在-9.1%~15.8%之间,偏离测线和海陆交汇区域比对点相对偏差在3.0%~44.3%之间。研究表明:面积网格法在辐射环境航空监测的空地比对研究工作中具有较好的应用性;在第四系沉积物区、基岩地层区域开展空地比对研究效果较好,可作为辐射环境航空监测空地比对地面选点的依据;受较多因素影响,偏离测线和海陆交汇区域比对效果较差,后续开展相关空地比对工作要重点研究和考虑。本次研究可为核设施辐射环境航空监测技术研究提供参考思路,也可为准确分析核设施及周边辐射环境变化趋势、核素迁移规律、核事故应急响应提供基础数据研究分析方法。
In aerial monitoring of the radiation environment in a nuclear power plant,air-to-ground comparison is an important tool and method to verify the quality of aerial monitoring data.In this paper,the area-grid method was used to select monitoring points in the Quaternary sediment,bedrock stratum area,deviation survey line,and area sea-land interface,to carry out air-ground comparison and to study the effectiveness of ground monitoring methods and the rationality of location selection.The results showed:The relative deviation of the monitoring points for comparison in the Quaternary sediment area was-8.8%to 9.7%;the relative deviation of the monitoring points for comparison in the bedrock stratum area was-9.1%to 15.8%;and the relative deviation of the comparison points for comparison in the deviation survey line and the sea land intersection area was 3.0%to 44.3%.The research showed that the area-grid method was well applied in the air-ground contrast research on aerial monitoring of radiation environment;the effect of open space comparison in Quaternary sediment and bedrock strata area was good,which could be used as the basis for selecting air-ground comparison points for monitoring radiation environment;affected by many factors,the comparison effect between the deviation survey line and the sea-land interface was poor,which should become the key research points and consideration for subsequent air-ground comparison.This study can provide a reference for the research of aerial monitoring technology for radiation environment of nuclear facilities,and also provide a basic data research and analysis method for accurate analysis of the change trend of radiation environment of nuclear facilities and their surroundings,the rule of nuclide migration,and the emergency response to nuclear accidents.
作者
姚沛林
王瑞军
王浩然
YAO Pei-lin;WANG Rui-jun;WANG Hao-ran(CNNP Liaoning Nuclear Power Co.,Ltd.,Huludao,Liaoning 125100,China;Airborne Survey&Remote Sensing Center of Unclear Industry,Shijiazhuang 050002,China)
出处
《四川环境》
2024年第3期84-90,共7页
Sichuan Environment
关键词
辐射环境航空监测
面积网格法
空地比对
数据质量
核电厂
Aerial surveillance of radiation environment
area grid method
air⁃ground comparison
data quality
nuclear power plant
