Estimation of doses to Taikonauts in SZ-5/6/7 missions using a male voxel model

Feng Xu; Zhi Zeng; Xianghong Jia

doi:10.1117/12.916105

13 March 2012 Estimation of doses to Taikonauts in SZ-5/6/7 missions using a male voxel model

Feng Xu, Zhi Zeng, Xianghong Jia

Proceedings Volume 8329, Tenth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2011); 832903 (2012) https://doi.org/10.1117/12.916105
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

Objective To assess the Taikonaut's space radiation risk organ, doses have been calculated using a male voxel model. Methods A male voxel model based on MRI was built. The proton spectra were calculated by AP-8 with SPENVIS and Badhwar's GCR model. The general 3 D Monte Carlo particle and heavy ion transport code GEANT4 was used to calculate the average doses for some organs and tissues. Results After 1 g/cm² shielding shell, the absorbed dose rate of skin is 0.6 mGy/d and effective dose rate is estimated to be 2.3 mSv/d during the SZ-5/6/7 mission. The total effective dosesof the taikonauts are estimated to be around 2.0 mSv during the SZ-5 mission, 10.9mSv during the SZ-6 mission and 6.5 mSv during the SZ-7 mission separately. Conclusion The calculated skin doses are closed to the values measured by TLDs in SZ-5/6/7, and within the range of 0.2~0.6mSv published by USA and Russia.

Citation Download Citation

Feng Xu, Zhi Zeng, and Xianghong Jia "Estimation of doses to Taikonauts in SZ-5/6/7 missions using a male voxel model", Proc. SPIE 8329, Tenth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2011), 832903 (13 March 2012); https://doi.org/10.1117/12.916105

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