辐射防护 ›› 2014, Vol. 34 ›› Issue (5): 319-323.

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西藏自治区天然中子周围剂量当量率的测量

徐勇军, 刘森林, 吴建华, 庞洪超, 汪传高   

  1. 中国原子能科学研究院,北京 102413
  • 收稿日期:2013-10-23 出版日期:2014-09-20 发布日期:2025-01-06
  • 作者简介:徐勇军(1973—),男,2009年毕业于中国原子能科学研究院辐射防护与环境保护专业,获博士学位,副研究员。E-mail:yjxu@ciae.ac.cn

Measurement of Natural Neutron Ambient Dose Equivalent Rate in Tibet Autonomous Region

Xu Yongjun, Liu Senlin, Wu Jianhua, Pang Hongchao, Wang Chuangao   

  1. Department of Radiation Safety, China Institute of Atomic Energy, Beijing 102413
  • Received:2013-10-23 Online:2014-09-20 Published:2025-01-06

摘要: 使用中子周围剂量当量仪对西藏自治区天然中子周围剂量当量率进行了测量。分析结果表明,在西藏自治区中海拔高度位于2 000~5 000 m的范围内,海拔高度每增加1 280 m,天然中子周围剂量当量率增加约1倍。同时,建筑物对天然中子有明显的屏蔽作用。

关键词: 高海拔地区, 天然中子, 周围剂量当量率, 有效剂量率, 西藏

Abstract: The natural neutron ambient dose equivalent rate was surveyed by using neutron ambient dose equivalent rate meter. According to the analyzing results, at the location with altitude range 2 000—5 000 m in Tibet autonomous region, the measured value of natural neutron ambient dose equivalent rate was higher than that at sea-level point and it would be 2 times larger when the altitude value increases 1 280 m, and the buildings could result in obvious shielding effect.

Key words: high altitude, natural neutron, ambient dose equivalent rate, effective dose rate, tibet

中图分类号: 

  • X837