| LND两年月表辐射剂量测量结果 |
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| 引用本文： | 张坤毅,侯东辉,WIMMER-SCHWEINGRUBER R F,孙越强,王春琴,常峥,徐子贡,沈国红,袁斌,薛长斌.LND两年月表辐射剂量测量结果[J].空间科学学报,2021,41(3):439-444. |
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| 作者姓名： | 张坤毅 侯东辉 WIMMER-SCHWEINGRUBER R F 孙越强 王春琴 常峥 徐子贡 沈国红 袁斌 薛长斌 |
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| 作者单位： | 1. 中国科学院国家空间科学中心 北京 100190; |
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| 基金项目： | 国家自然科学基金项目资助（41941001，D020104） |
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| 摘 要： | 月球表面的辐射剂量是影响航天员安全和月表驻留时间的重要参数，通过对月表的粒子辐射测量可以为航天员的辐射安全防护提供重要依据.利用嫦娥四号着陆器上搭载的月表中子与辐射剂量探测仪二年的观测数据得到:月表粒子辐射在硅中的平均总吸收剂量率为12.66±0.45μGy·h-1，中性粒子吸收剂量率为2.67±0.16μGy·h-1.辐射剂量率随时间出现缓慢的下降，LET谱的变化则很小.同时观测到了2020年12月太阳活动末期由于银河宇宙线福布斯下降导致的辐射剂量率降低.
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| 关 键 词： | 嫦娥四号 月表 辐射剂量 航天员 |
| 收稿时间： | 2021-04-16 |
Radiation Dose of LND on the Lunar Surface in Two Years |
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| ZHANG Shenyi,HOU Donghui,WIMMER-SCHWEINGRUBER R F,SUN Yueqiang,WANG Chunqin,CHANG Zheng,XU Zigong,SHEN Guohong,YUAN Bin,XUE Changbin.Radiation Dose of LND on the Lunar Surface in Two Years[J].Chinese Journal of Space Science,2021,41(3):439-444. |
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| Authors: | ZHANG Shenyi HOU Donghui WIMMER-SCHWEINGRUBER R F SUN Yueqiang WANG Chunqin CHANG Zheng XU Zigong SHEN Guohong YUAN Bin XUE Changbin |
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| Institution: | 1. National Space Science Center, Chinese Academy of Sciences, Beijing 100190;2. Beijing Key Laboratory of Space Environment Exploration, Beijing 100190;3. Key Laboratory of Environmental Space Situation Awareness Technology, Beijing 100190;4. University of Chinese Academy of Sciences, Beijing 100049;5. Institute of Experimental and Applied Physics, Christian-Albrechts-University, Kiel 24118 |
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| Abstract: | The radiation dose on the lunar surface is an important parameter affecting the safety of astronauts and the residence time of the lunar surface. The measurement of the particle radiation on the lunar surface can provide an important basis for the radiation safety protection of astronauts. Based on the two-year observation data of lunar neutron and radiation dose detector on Chang'E-4 lander, the average total absorbed dose rate of lunar particle radiation in silicon is 12.66±0.45μGy·h-1, and the absorbed dose rate of neutral particle is 2.67±0.16μGy·h-1. The radiation dose rate decreases slowly with time, but the change of LET spectrum is very small. The decrease of radiation dose rate due to the decrease of fubusch of GCR at the end of solar activity in December 2020 was observed. |
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