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在韩国使用车载调查系统在全国范围内绘制陆地马辐射的地图

Jaeho Jang¹, Jaewoo Park^2,3, Byung-Uck Chang²

¹Korea Institute of Nuclear Safety, 62 Gwahak-Ro, 34142, Daejeon, Republic of Korea. jaeho@kins.re.kr.

Scientific reports

|January 8, 2026

概括

韩国一项全国性的汽车辐射调查绘制了自然放射性核素的背景辐射. 这项研究为公共卫生政策提供了关于陆地辐射水平和环境剂量率的关键数据.

科学领域:

环境科学环境科学
核物理核物理核物理
地质物理学地质物理学

背景情况:

评估背景辐射对于理解自然环境暴露至关重要.
自然存在的放射性核素 (NORM) 对陆地辐射有很大的贡献.
韩国缺乏关于全国辐射水平的全面,高分辨率数据.

研究的目的:

在韩国进行全国范围的汽车辐射调查.
测量自然存在的放射性核素的背景辐射水平.
创建一个关于陆地辐射和环境剂量率的地理空间数据库.

主要方法:

使用了两辆装有NaI(Tl) 探测器和高压电离室 (HPIC) 的调查车辆.
在四年内收集了723,052个玛射线光谱和环境剂量速率测量.
开发了一个后处理工具,用于放射性核素特定的净计数率提取和数据转换.

主要成果:

创建了相当 (eU),相当 (eTh) 和-40 (40K) 的活动度的地理空间数据库.
平均度:eU (51.2 Bq kg-1),eTh (58.9 Bq kg-1),40K (877 Bq kg-1). 平均度:eU (51.2 Bq kg-1),eTh (58.9 Bq kg-1),40K (877 Bq kg-1). 平均度:eU (51.2 Bq kg-1),eTh (58.9 Bq kg-1),40K (877 Bq kg-1). 平均度:eU (51.2 Bq kg-1),eTh (58.9 Bq kg-1),40K (877 Bq kg-1). 平均度:eU (51.2 Bq kg-1),eTh (58.9 Bq kg-1),eTh (58.9 Bq kg-1),40K (877 Bq kg-1) 平均度:eU (51 Bq kg-1),eTh (58 Bq kg-1),eTh (58 Bq kg-1),eTh (58 Bq kg-1),eTh (58 Bq kg-1),eTh) 平均度:eU (51 Bq kg-1),eTh (58 Bq kg-1),eTh (58 Bq kg-1) 平均度:eU
平均环境剂量率为131 nSv h-1,并创建了四个分布图.

结论:

该研究建立了一个全面的,高分辨率的韩国陆地辐射数据集.
这些数据为评估公共辐射暴露提供了定量基础.
调查结果将为管理现有辐射暴露情况的国家政策提供信息.

关键词:

汽车运输的马射线调查自然的放射性核化物.辐射映射绘制地图地球上的马辐射.

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