CAJ | 학술논문

目的研究极地航线空勤人员(包括飞行员和空乘人员)所受宇宙辐射剂量,以评价其是否超过国家标准,确保空勤人员健康,保障飞行安全. 方法采用外照射全身个人剂量监测胸章剂量计,对典型极地航线(北京-纽约)空勤人员(飞行员6名、空乘人员12名)的个人辐射剂量进行测定,以地面工作场所10个监测点所测得的辐射剂量作为对照组. 结果极地航线飞行员组的年有效剂量为5.34 mSv/a,千小时有效剂量为(3.43±0.08)mSv/1000 h,极地航线空乘人员组的年有效剂量为6.06 mSv/a,千小时有效剂量为(2.94±0.14)mSv/1000 h,地面对照组分别为0.63 mSv/a及(0.07±0.02)mSv/1000 h,3组间差异均有统计学意义. 结论极地航线飞行空勤人员的年有效剂量均未超过国家标准规定限值(20 mSv/a),极地飞行中宇宙射线辐射不会对空勤人员身体构成额外过量剂量,基本属正常航线飞行,不必产生心理恐慌.
목적 연구겁지항선공근인원(포괄비행원화공승인원)소수우주복사제량,이평개기시부초과국가표준,학보공근인원건강,보장비행안전. 방법 채용외조사전신개인제량감측흉장제량계,대전형겁지항선(북경-뉴약)공근인원(비행원6명、공승인원12명)적개인복사제량진행측정,이지면공작장소10개감측점소측득적복사제량작위대조조. 결과 겁지항선비행원조적년유효제량위5.34 mSv/a,천소시유효제량위(3.43±0.08)mSv/1000 h,겁지항선공승인원조적년유효제량위6.06 mSv/a,천소시유효제량위(2.94±0.14)mSv/1000 h,지면대조조분별위0.63 mSv/a급(0.07±0.02)mSv/1000 h,3조간차이균유통계학의의. 결론 겁지항선비행공근인원적년유효제량균미초과국가표준규정한치(20 mSv/a),겁지비행중우주사선복사불회대공근인원신체구성액외과량제량,기본속정상항선비행,불필산생심리공황.
Objective To measure the cumulative cosmic radiation dose of aircrew in polar flight and to assess whether the dose exceeds the national standard in order to ensure flight safety and their health. Methods Photoluminescence (OSL) dosimeter and CR-39 solid track detector were used to measure the cosmic radiation dose contributed by photon and neutron. The individual effective dose of pilots (6 persons) and stewards (12 persons), who were in the typical polar flight route (Beijing-New York), were measured and compared with the control group whose values were gathered from 10 monitors on ground site. Results The 1000 h effective dose from the groups of pilot and stewards was (3.43±0.08) mSv/1000 h and (2.94±0. 14) mSv/1000 h respectively comparing to (0.07±0. 02) mSv/1000 h gathered from ground sites. The statistic showed significant differences among these 3 groups. The annual effective does was then respectively summarized as 5. 34, 6.06 and 0.63 mSv/a corresponding to above groups. Conclusions The annual effective dose of aircrew's in polar flight does not exceed the limit of national standard (20 mSv/a). Such polar flight will not cause aircrew suffered from excessive cosmic radiation and it's not necessary to carry extra mental load.