新疆地区飞行人员宇宙辐射受照剂量的估算分析  

Estimated cosmic radiation doses received in flight personnel of Xingjiang Airline

作　　者：张涛[1] 陈蔚如[2] 马严 张军[1] 

机构地区：[1]新疆航空公司航医,乌鲁木齐830016 [2]中国民航学院航空医学研究所,天津300300 [3]乌鲁木齐国际机场急救中心,乌鲁木齐830016

出　　处：《中华航空航天医学杂志》2005年第2期111-116,共6页Chinese Journal of Aerospace Medicine

基　　金：国家自然科学基金资助(30370358)

摘　　要：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。Objective To calculate the average individual annual cosmic radiation effective dose received in flight personnel of Xingjiang Airline so as to provide basis for regulatory control of radiation exposure. Methods With the help of aircraft flight information from flight performance manual, the effective dose rate of galactic cosmic radiation along the airlines in Xingjiang area, and the effective dose on the ground in Urumuqi were calculated using software CARI-6, then individual annual cosmic radiation dose received in flight personnel was estimated. Results The annual cosmic radiation dose received on the ground in Urumuqi was 0. 420 mSv·a^-1. The average effective dose rate of various flights of Xinjiang airlines from 1997 to 1999 was 2. 381μSv·a^-1 （ranging between 0. 330～0. 640 μSv· h^-1） . Average annual cosmic radiation dose received in flight personnel was 2. 193 mSv ·a^-1 （ranging between 4. 419～0. 887 mSv·a^-1 ）. Conclusions Anrrual individual doses received in airline flight personnel in Xingjiang area are well below the limit 20 mSv · a^-1 recommended by International Commission on Radiological Protection.

关 键 词：宇宙辐射 飞行人员 辐射剂量 

分 类 号：R85[医药卫生—航空、航天与航海医学]