Acta Scientiarum Naturalium Universitatis Pekinensis ›› 2025, Vol. 61 ›› Issue (2): 379-387.DOI: 10.13209/j.0479-8023.2025.009

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Comprehensive Detection Technology of Particle Radiation Effects in Solar Synchronous Orbit

SHEN Guohong1,2,†, CHANG Zheng1,2, ZHANG Huanxin1,2, WANG Chunqin1,2, SUN Ying1,2, QUAN Zida1,2, ZHANG Xianguo1,2, SUN Yueqiang1,2
  

  1. 1. National Space Science Center, Chinese Academy of Science, Beijing 100190 2. Beijing Key Laboratory of Space Environment Exploration, Beijing 100190
  • Received:2024-04-03 Revised:2024-10-11 Online:2025-03-20 Published:2025-03-20
  • Contact: SHEN Guohong, E-mail: shgh(at)nssc.ac.cn

太阳同步轨道粒子辐射效应综合探测技术

沈国红1,2,†, 常峥1,2, 张焕新1,2, 王春琴1,2, 孙莹1,2, 权子达1,2, 张贤国1,2, 孙越强1,2   

  1. 1. 中国科学院国家空间科学中心, 北京 100190 2. 天基空间环境探测北京市重点实验室, 北京 100190
  • 通讯作者: 沈国红, E-mail: shgh(at)nssc.ac.cn
  • 基金资助:
    军事航天部队装备部“末级留轨系统空间粒子辐射效应综合测量仪”项目资助

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Abstract:

Based on the characteristics of space particle radiation in the sun-synchronous orbit (SSO), a space particle radiation effect comprehensive measuring instrument (SPRECMI) was installed on the orbital platform of upper stage of Chinese CZ-4C carrier rocket for obtaining the high-energy proton energy spectra, linear energy transfer (LET) spectra of particles, and radiation dose rate. The detection results can be used for in-orbit fault analysis and operational control management of spacecraft and serve as reference data for component validation tests. After SPRECMI’s development, accelerator calibration and simulations were conducted, and the results demonstrated that the measured indicators such as high-energy protons, total radiation dose, and LET spectrum all met the requirements of detection range, accuracy, and sensitivity. Furthermore, the in-orbit flight test revealed that the detection results of the load components were consistent with the physical characteristics of the particle radiation environment of the spacecraft orbit.

Key words: upper stage, orbital platform, particle radiation, linear energy transfer (LET) spectra, radiation dose; high-energy proton

摘要：

针对太阳同步轨道空间粒子辐射及其辐射效应的特点, 在CZ-4C运载火箭末级留轨应用平台上搭载空间粒子辐射效应综合测量仪, 开展该轨道空间的高能质子能谱、粒子辐射LET谱及辐射剂量率探测, 在轨获取的探测数据可用于航天器在轨故障分析和运控管理, 同时为开展元器件试验验证等提供环境数据支持。载荷研制阶段的加速器标定试验及仿真计算结果表明, 高能质子、辐射总剂量以及LET谱等实测性能指标均满足探测范围、精度及灵敏度等指标要求, 在轨飞行试验结果也表明, 载荷各测量对象的探测结果符合航天器轨道粒子辐射环境的物理特性。

关键词: 末级, 留轨平台, 粒子辐射, LET谱, 辐射剂量, 高能质子

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