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题名: Radiation Measured for Chinese Satellite SJ-10 Space Mission
作者: Dazhuang Zhou;Yeqing Sun;Binquan Zhang;Shenyi Zhang;Yueqiang Sun;Jinbao Liang;Guangwu Zhu;Tao Jing;Bin Yuan;Huanxin Zhang;Meng Zhang;Wei Wang;Lei Zhao
作者部门: 空间环境部
通讯作者: Dazhuang Zhou and Yeqing Sun
关键词: CR-39 nuclear track detectors ; linear energy transfer method ; radiation bio-stacks and bio-effects ; space radiation measurement
刊名: Journal of Geophysical Research: Space Physics
ISSN号: 2169-9402
出版日期: 2018
卷号: 123, 期号:2, 页码:1690-1700
收录类别: SCI
英文摘要: Space biological effects are mainly a result of space radiation particles with high linear energy transfer (LET); therefore, accurate measurement of high LET space radiation is vital. The radiation in low Earth orbits is composed mainly of high-energy galactic cosmic rays (GCRs), solar energetic particles, particles of radiation belts, the South Atlantic Anomaly, and the albedo neutrons and protons scattered from the Earth's atmosphere. CR-39 plastic nuclear track detectors sensitive to high LET are the best passive detectors to measure space radiation. The LET method that employs CR-39 can measure all the radiation LET spectra and quantities. CR-39 detectors can also record the incident directions and coordinates of GCR heavy ions that pass through both CR-39 and biosamples, and the impact parameter, the distance between the particle's incident point and the seed's spore, can then be determined. The radiation characteristics and impact parameter of GCR heavy ions are especially beneficial for in-depth research regarding space radiation biological effects. The payload returnable satellite SJ-10 provided an excellent opportunity to investigate space radiation biological effects with CR-39 detectors. The space bio-effects experiment was successfully conducted on board the SJ-10 satellite. This paper introduces space radiation in low Earth orbits and the LET method in radiation-related research and presents the results of nuclear tracks and biosamples hitting distributions of GCR heavy ions, the radiation LET spectra, and the quantities measured for the SJ-10 space mission. The SJ-10 bio-experiment indicated that radiation may produce significant bio-effects.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6233
Appears in Collections:空间环境部_期刊论文

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Dazhuang Zhou;Yeqing Sun;Binquan Zhang;Shenyi Zhang;Yueqiang Sun;Jinbao Liang;Guangwu Zhu;Tao Jing;Bin Yuan;Huanxin Zhang;Meng Zhang;Wei Wang;Lei Zhao. Radiation Measured for Chinese Satellite SJ-10 Space Mission[J]. Journal of Geophysical Research: Space Physics,2018,123(2):1690-1700.
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