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

doi:10.1088/1674-1056/aca600

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.

Keywords: space radiation Chinese female voxel phantom China's Space Station radiation exposure risk

Received: 18 August 2022
Revised: 14 November 2022
Accepted manuscript online: 25 November 2022

PACS:

94.05.sj

(Space radiation environment)

Fund: 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).

Corresponding Authors: Meihua Fang
E-mail: fmh_medphys@nuaa.edu.cn

Cite this article:

Yipan Guo(郭义盼), Fazhi Yan(闫发智), Meihua Fang(方美华),Zhao Zhang(张昭), Wei Cheng(成巍), and Bing Guo(郭兵) Monte Carlo calculation of the exposure of Chinese female astronauts to earth's trapped radiation on board the Chinese Space Station 2023 Chin. Phys. B 32 079401

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

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