宇宙辐射对民航机组人员的危害及其防护

Risk of cosmic radiation to crew members of civil aviation and its protecton

综述了宇宙射线的来源、成分，高度、纬度效应以及机组人员飞行中所受宇宙辐射的剂量水平、危险性。根据国际放射防护委员会（ICRP）提出的有关职业照射的剂量限值，结合民航机组人员长期均匀的接受宇宙辐射这一特点，提出了修订相应的剂量限值标准的建议和一系列防护措施。

In this paper,the source and component of cosmic radiation,its altitude and altitude effects,dose equivalents of cosmic radiation recieved in flight by crew members and their risk to crew members were summarized.According to the dose limits for occupational irradiation recommended by International Commission of Radiological Protection,and fuking account of that cosmic radiation received by air carrier crew members was of long term and even distributed,authors suggest that,corresponding dose limit for crew members be revised and a series of protective measure be taken.