| TUO Fei,YAO Yong-xiang,ZHOU Lian,et al.Comparison of cosmic radiation doses contributed by photon and neutron for air crew between polar route and non-polar route flights[J].Chinese Journal of Radiological Medicine and Protection,2010,30(4):469-471 |
| Comparison of cosmic radiation doses contributed by photon and neutron for air crew between polar route and non-polar route flights |
| Received:November 03, 2009 |
| DOI：10.3760/cma.j.issn.0254-5098.2010.04.028 |
| KeyWords:Polar route flight Air crew Photon Neutron Radiation dose |
| FundProject:中国国际航空股份有限公司软科学研究和科技创新项目(2006007) |
| Author Name | Affiliation | E-mail | | TUO Fei | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | YAO Yong-xiang | 中国国际航空股份有限公司航卫中心 | | | ZHOU Lian | 中国国际航空股份有限公司航卫中心 | | | LIU Yun | 中国国际航空股份有限公司航卫中心 | | | LI Wen-hong | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | ZHAO Li | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | ZHOU Qiang | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | XU Cui-hua | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | xucuihua@nirp.cn | | REN Tian-shan | National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | |
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| Abstract:: |
| Objective To compare the cosmic radiation doses to air crew (including pilots and flight attendants) between polar route and non-polar route flights. Methods A typical polar flight route (Beijing-New York) was selected and compared with non-polar route, non-polar route was selected as control group. Optically stimulated luminescence (OSL) dosimeter and CR-39 solid track detector were used to measure the cosmic radiation dose to air crew. Results The annual mean effective dose to air crew from polar route and non-polar route was (5.79±0.92)mSv/a and (2.14±0.64)mSv/a, respectively. The 1000 h effective dose to air crew was (3.10±0.27)mSv/kh and (2.21±0.46)mSv/kh, respectively. There was significant difference between the two groups in either annual mean effective dose (t=30.25, P＜0.05) or 1000 h effective dose (t=7.60, P＜0.05). The doses of pilot groups were higher than that of flight attendants for either polar route (t=7.96, P＜0.05) or non-polar route (t=4.70, P＜0.05). Conclusions The effective dose to air crew from galactic cosmic radiation during polar route fight might be higher than that of non-polar route fight, however, it did not exceed 20 mSv/year, which is the limit of national standard. |
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