| 载人航天器舱内辐射环境及剂量分析 |
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| 引用本文： | 吴正新,孙慧斌,何承发,童永彭,马玉刚,陆景彬,荀明珠,呼延奇,蔡震波,朱志鹏.载人航天器舱内辐射环境及剂量分析[J].航天器环境工程,2016,33(2):154-157. |
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| 作者姓名： | 吴正新 孙慧斌 何承发 童永彭 马玉刚 陆景彬 荀明珠 呼延奇 蔡震波 朱志鹏 |
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| 作者单位： | 吉林大学物理学院, 长春 130012;吉林大学物理学院, 长春 130012;深圳大学核技术研究所, 深圳 518060;中国科学院新疆理化技术研究所, 乌鲁木齐 830011;深圳大学核技术研究所, 深圳 518060;吉林大学物理学院, 长春 130012;吉林大学物理学院, 长春 130012;中国科学院新疆理化技术研究所, 乌鲁木齐 830011;北京空间飞行器总体设计部, 北京 100094;北京空间飞行器总体设计部, 北京 100094;深圳大学核技术研究所, 深圳 518060 |
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| 基金项目： | 国家重大科学仪器设备开发专项基金(批准号:2012YQ240121);国家自然科学基金(编号:11575118;11375117) |
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| 摘 要： | 构建载人航天器模型,利用Geant4软件计算了银河宇宙射线中的质子穿过载人航天器后在水模体中的总吸收剂量以及次级粒子吸收剂量,并且统计了不同种类的次级粒子在水模体中的总数量分布。计算结果表明,次级粒子引起的辐射剂量所占比例为50%,且二次电子总数量达到了10~7量级。
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| 关 键 词： | 吸收剂量 银河宇宙射线 载人航天器 屏蔽材料 蒙特卡罗方法 数值分析 |
| 收稿时间： | 2015/10/5 0:00:00 |
| 修稿时间： | 2016/3/12 0:00:00 |
Analysis of radiation environment and its dose within sealed cabin of manned spacecraft |
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| Wu Zhengxin,Sun Huibin,He Chengf,Tong Yongpeng,Ma Yugang,Lu Jingbin,Xun Mingzhu,Hu Yanqi,Cai Zhenbo and Zhu Zhipeng.Analysis of radiation environment and its dose within sealed cabin of manned spacecraft[J].Spacecraft Environment Engineering,2016,33(2):154-157. |
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| Authors: | Wu Zhengxin Sun Huibin He Chengf Tong Yongpeng Ma Yugang Lu Jingbin Xun Mingzhu Hu Yanqi Cai Zhenbo and Zhu Zhipeng |
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| Institution: | College of Physics, Jilin University, Changchun 130012, China;College of Physics, Jilin University, Changchun 130012, China;Institute of Nuclear Technology, Shenzhen University, Shenzhen 518060, China;Xinjiang Technical Institute of Physics and Chemistry, China Academy of Sciences, Urumqi 830011, China;Institute of Nuclear Technology, Shenzhen University, Shenzhen 518060, China;College of Physics, Jilin University, Changchun 130012, China;College of Physics, Jilin University, Changchun 130012, China;Xinjiang Technical Institute of Physics and Chemistry, China Academy of Sciences, Urumqi 830011, China;Beijing Institute of Spacecraft System Engineering, Beijing 100094, China;Beijing Institute of Spacecraft System Engineering, Beijing 100094, China;Institute of Nuclear Technology, Shenzhen University, Shenzhen 518060, China |
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| Abstract: | By using the Geant4 toolkit, we have modeled the interaction process of the most abundant galactic cosmic ray particle fluxes (protons) injected into the water phantom in a manned spacecraft model. The total absorbed dose due to the protons and the absorbed dose due to the secondary particles generated by the radiation are estimated, as well as the total number of different kinds of secondary particles. Final results indicate that the proportion of the absorbed dose due to the secondary particles generated accounts for 50% of the total dose, and the total amount of the secondary electrons reaches the order of 107. |
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| Keywords: | absorbed dose GCR manned spacecrafts shield material Monte Carlo method numerical analysis |
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