载人火星任务带电粒子辐射探测方案与应用技术研究

Research on Detection Scheme and Application Technology of Charged Particle Radiation Detection Scheme Manned Mars Missions

为确保载人火星任务中航天员的安全,有必要搭载辐射探测器对舱内的辐射环境进行实时监测。在对载人火星任务辐射环境分析的基础上,确定了辐射探测器的测量指标并完成了基于两片硅传感器探头的探测器方案设计,包括探头设计和可变采样快门时间的采样设计。另外,针对人体组织与探测材料不同,测量数据无法直接用于航天员辐射损伤预估的问题,将人体组织近似为水,分别给出了辐射剂量、传能线密度在硅和水间的转换关系。

To ensure the safety of astronauts, the radiation detection of the charged particles and re-al-time acquisition of radiation environmental data are required. Based on the analysis of the radia-tion environment of the manned Mars mission, the measurement parameters of the detector were de-termined, and the scheme design of the radiation detector was completed based on two silicon sensorprobes including the probe design and the sampling method design of the variable sampling shuttertime. Due to the difference between the detection material and the human tissue, the detection re-sults could not be used directly for astronaut radiation damage assessment. Taking the human bodytissue approximately as water, the conversion relationship of the radiation dose and the line energytransfer between silicon and water were given respectively.