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目的为了宇宙辐射防护管理,计算飞行人员个人宇宙辐射年均受照有效剂量。方法根据飞行指令数据使用软件CARI6计算飞行航线的宇宙辐射有效剂量和乌鲁木齐地区地面的宇宙辐射有效剂量,由此计算个人年均受照有效剂量。结果乌鲁木齐地区地面个人年均受照有效剂量为0.420mSv·a-1,新疆地区全部航线1997至1999年年均宇宙辐射有效剂量率为2.381μSv·h-1(最大3.640μSv·h-1,最小0.330μSv·h-1),被检测飞行人员年均受照有效剂量为2.193mSv·a-1(最大4.419mSv·a-1,最小0.887mSv·a-1)。结论估算的234个受检飞行人员的年均受照有效剂量均小于国际放射防护委员会(ICRP)建议的限值20mSv·a-1。
Purpose For cosmic radiation protection management, calculate the annual average effective dose of personal cosmic radiation of pilots. Methods According to the flight instruction data, the cosmic radiation effective dose of the flight route and cosmic radiation effective dose of the ground in Urumqi area were calculated by using the software CARI6 to calculate the annual average effective dose for individuals. Results The annual average effective radiation dose of 0.420mSv · a-1 for ground-based individuals in Urumqi was 2.381μSv · h-1 (maximum 3.640μSv · h-1) for all routes in Xinjiang during 1997-1999, Minimum 0.330μSv · h-1). The average effective dose of the tested pilots was 2.193mSv · a-1 (maximum 4.419mSv · a-1, minimum 0.887mSv · a-1). Conclusions The estimated average annual effective doses of 234 pilot pilots were less than 20mSv · a-1 as recommended by the International Commission on Radiological Protection (ICRP).