地表及空勤航线中子辐射水平测量现状  

Investigation of Air Ground Interface Environmental Neutron Radiation Level

作　　者：张京[1] 丁艳秋[1] 拓飞[1] 周强[1] 李则书 ZHANG Jing DING Yan-qiu TUO Fei ZHOU Qiang LI Ze-shu(National Institute for Radiological Protection, China CDC , Key Laboratory of Radiological Pro- tection and Nuclear Emergency, China CDC, Beijing 100088 China.)

机构地区：[1]中国疾病预防控制中心辐射防护与核安全医学所辐射防护与核应急中国疾病预防控制中心重点实验室,北京100088

出　　处：《中国辐射卫生》2017年第2期217-220,共4页Chinese Journal of Radiological Health

摘　　要：目的调研地表和空勤航线中子辐射水平测量研究状况,研究天然中子对环境辐射的贡献。方法收集地空界面环境中子的来源及其研究文献报道的最新数据,研究比较国内外地空界面环境中子测量结果。结果在海平面水平来自宇宙射线辐射中子成份的周围剂量当量率为5.5 nSv·h^(-1),民用航空国际航线航行器上的中子剂量率为2.5μSv·h^(-1)。结论人们主要侧重于对人工中子源中子辐射场的理论研究、实验测量、应用和防护等,而目前国内外对地空界面上天然中子辐射场的研究较少,尚需深入研究。Objective To study the status of ground to air interface enviroment of neutron radiation level,give the contribution of natural neutron radiation environment.Methods The latest studies of the literature about the air ground interface environmental neutron data at home and abroad were collected and the comparative study of air interface environmental neutron measurement situation were carried out.Results The ambient dose equivalent rate from cosmic ray neutron radiation component at sea level is 5.5 nSv ＆#183; h-1.The neutron dose rate on aircraft of international routes is 2.5 Sv ＆#183; h-1.Conclusion There are many research focuses on artificial neutron source,such as theoretical research of neutron radiation field,experimental measurement,application and radiation protection of natural neutron radiation field.Further research needs to be carried out for air interface.

关 键 词：环境中子 注量 剂量率 测量方法 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]