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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。
The model of the manned spacecraft was built. The total absorbed dose of the proton in the galactic cosmic ray and the absorbed dose of the secondary particle in the galactic cosmic ray were calculated by Geant4 software and the different types of secondary particles were calculated The total number of water phantoms in the distribution. The calculation results show that the radiation dose caused by the secondary particles accounts for 50%, and the total number of secondary electrons reaches 10 ~ 7 orders of magnitude.