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

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.

Automated summary

With the development of China's crewed space mission, the paper presents a simulation of radiation doses experienced by a Chinese female voxel phantom on board the Chinese Space Station. The study discusses the absorbed dose, equivalent dose, and effective dose of the voxel phantom and its critical organs under different levels of shielding. The research assesses the risk of space-radiation exposure by comparing these doses with current risk limits in China and NASA figures for female astronauts, providing guidance for optimizing radiation protection in manned space missions.