基于蒙特卡洛方法对民航飞行人员宇宙辐射受照剂量的研究

目的:为了估算飞行人员在2004-2014年飞行过程中的受到的宇宙辐射剂量,对飞行人员辐射防护工作进行科学管理。方法:本文以蒙特卡洛方法仿真数据建立的地球宇宙辐射剂量数据库为基础,根据飞行航线、机场与日期等信息,采用中国民航总局组织开发的宇宙辐射有效剂量计算系统CARD计算出某条航线一个航班飞行期间飞行人员受到的辐射剂量,由此推算出飞行人员全年的剂量。结果:对某航空公司459条航线2004-2014年飞行剂量计算:2004年飞行人员年均受照有效剂量最小;2009年飞行人员年均受照有效剂量最大;飞行人员年均受照有效剂量与太阳日心压成反比关系。计算结果表明该航空公司所有飞行人员2004-2014年所受辐射剂量在国际国标的建议限制范围之内。

In order to estimate the cosmic radiation dose to the flight crew during the 2004-2014 flight and make radiation pro-tection management work of the flight personnel scientific,this paper calculates the annual dose of flight personnel based on Monte Carlo method.That is to say,A radiation dose which is received by a flight crew during a flight can be calculated according to the following information：based on the earth cosmic radiation dose database established by Monte Carlo method;the effective dose calculation system CARD of cosmic radiation developed by civil aviation Administration of China which needs the following information such as flight routes, airports and dates, etc. Based on the flight dose calculation of 459 routes of a certain airline between 2004-2014 years, it is 2004 that flight personnel with an average annual effective dose of the minimum;it is 2009 that flight personnel with an average annual effective dose of the maximum;the flight crew annual effective dose is inversely proportional to the heliocentric pressure.The calculated results indicate that all flight personnel of the airline are subject to radiation dose within the recommended limits of the international standard between 2004-2014 years.