中国物理B ›› 2023, Vol. 32 ›› Issue (7): 79401-079401.doi: 10.1088/1674-1056/aca600

• • 上一篇    

Monte Carlo calculation of the exposure of Chinese female astronauts to earth's trapped radiation on board the Chinese Space Station

Yipan Guo(郭义盼)1, Fazhi Yan(闫发智)1, Meihua Fang(方美华)1,†, Zhao Zhang(张昭)1, Wei Cheng(成巍)2, and Bing Guo(郭兵)2   

  1. 1 Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2 Beijing Institute of Applied Meteorology, Beijing 100029, China
  • 收稿日期:2022-08-18 修回日期:2022-11-14 接受日期:2022-11-25 出版日期:2023-06-15 发布日期:2023-07-05
  • 通讯作者: Meihua Fang E-mail:fmh_medphys@nuaa.edu.cn
  • 基金资助:
    Project supported by the Open Project Funds for the Key Laboratory of Space Photoelectric Detection and Perception (Nanjing University of Aeronautics and Astronautics), the Ministry of Industry and Information Technology of China (Grant No. NJ2022025-7) and the Fundamental Research Funds for the Central Universities (Grant No. NJ2022025).

Monte Carlo calculation of the exposure of Chinese female astronauts to earth's trapped radiation on board the Chinese Space Station

Yipan Guo(郭义盼)1, Fazhi Yan(闫发智)1, Meihua Fang(方美华)1,†, Zhao Zhang(张昭)1, Wei Cheng(成巍)2, and Bing Guo(郭兵)2   

  1. 1 Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2 Beijing Institute of Applied Meteorology, Beijing 100029, China
  • Received:2022-08-18 Revised:2022-11-14 Accepted:2022-11-25 Online:2023-06-15 Published:2023-07-05
  • Contact: Meihua Fang E-mail:fmh_medphys@nuaa.edu.cn
  • Supported by:
    Project supported by the Open Project Funds for the Key Laboratory of Space Photoelectric Detection and Perception (Nanjing University of Aeronautics and Astronautics), the Ministry of Industry and Information Technology of China (Grant No. NJ2022025-7) and the Fundamental Research Funds for the Central Universities (Grant No. NJ2022025).

摘要: With the development of China's crewed space mission, the space radiation risk for astronauts is increasingly prominent. This paper describes a simulation of the radiation doses experienced by a Chinese female voxel phantom on board the Chinese Space Station (CSS) performed using the Monte Carlo N-Particle (MCNP) software. The absorbed dose, equivalent dose, and effective dose experienced by the voxel phantom and its critical organs are discussed for different levels of shielding of the Tianhe core module. The risk of space-radiation exposure is then assessed by comparing these doses with the current risk limits in China (the skin dose limit for short-term low-earth-orbit missions) and the NASA figures (National Council on Radiation Protection and Measurements Report No. 98) for female astronauts. The results obtained can be used to guide and optimize the radiation protection provided for manned space missions.

关键词: space radiation, Chinese female voxel phantom, China's Space Station, radiation exposure risk

Abstract: With the development of China's crewed space mission, the space radiation risk for astronauts is increasingly prominent. This paper describes a simulation of the radiation doses experienced by a Chinese female voxel phantom on board the Chinese Space Station (CSS) performed using the Monte Carlo N-Particle (MCNP) software. The absorbed dose, equivalent dose, and effective dose experienced by the voxel phantom and its critical organs are discussed for different levels of shielding of the Tianhe core module. The risk of space-radiation exposure is then assessed by comparing these doses with the current risk limits in China (the skin dose limit for short-term low-earth-orbit missions) and the NASA figures (National Council on Radiation Protection and Measurements Report No. 98) for female astronauts. The results obtained can be used to guide and optimize the radiation protection provided for manned space missions.

Key words: space radiation, Chinese female voxel phantom, China's Space Station, radiation exposure risk

中图分类号:  (Space radiation environment)

  • 94.05.sj