北京大学学报自然科学版 ›› 2024, Vol. 60 ›› Issue (1): 145-156.DOI: 10.13209/j.0479-8023.2023.096

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风云三号E星空间环境载荷综合探测技术

沈国红1,2,†, 黄聪3,4, 张鹏飞5, 张效信3,4, 王金华5, 李佳薇3,4, 宗位国3,4, 张珅毅1,2, 张贤国1,2, 孙越强1,2, 杨勇5, 张焕新1,2, 邹鸿6, 王劲东1,2, 孙莹1,2, 白超平1,2, 田峥1,2
  

  1. 1. 中国科学院国家空间科学中心, 北京 100190 2. 北京市空间环境探测重点实验室, 北京 100190 3. 中国气象局国家卫星气象中心北京市空间天气重点实验室, 北京 100081 4. 许健民气象卫星创新中心, 北京 100081 5. 上海卫星工程研究所, 上海 201109 6. 北京大学地球与空间科学学院, 北京 00871
  • 收稿日期:2023-01-29 修回日期:2023-02-28 出版日期:2024-01-20 发布日期:2024-01-20
  • 通讯作者: 沈国红, E-mail: shgh(at)nssc.ac.cn
  • 基金资助:
    国家自然科学基金(41931073)和国家重点研发计划(2021YFA0718600)资助

Comprehensive Detection Payload Technology for Space Environment of FY-3E Satellite

SHEN Guohong1,2,†, HUANG Cong3,4, ZHANG Pengfei5, ZHANG Xiaoxin3,4, WANG Jinhua5, LI Jiawei3,4, ZONG Weiguo3,4, ZHANG Shenyi1,2, ZHANG Xianguo1,2, SUN Yueqiang1,2, YANG Yong5, ZHANG Huanxin1,2, ZOU Hong6, WANG Jindong1,2, SUN Ying1,2, BAI Chaoping1,2, TIAN Zheng1,2
  

  1. 1. National Space Science Center, Chinese Academy of Science, Beijing 100190 2. Beijing Key Laboratory of Space Environment Exploration, Beijing 100190 3. Key Laboratory of Space Weather, National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081 4. Innovation Center for FengYun Meteorological Satellite (FYSIC), Beijing 100081 5. Shanghai Institute of Satellites Engineering, Shanghai 201109 6. School of Earth and Space Sciences, Peking University, Beijing 100871
  • Received:2023-01-29 Revised:2023-02-28 Online:2024-01-20 Published:2024-01-20
  • Contact: SHEN Guohong, E-mail: shgh(at)nssc.ac.cn

摘要:

针对中国风云三号卫星运行的低地球太阳同步轨道, 开展空间环境及粒子辐射效应监测, 提出基于空间环境监测器Ⅱ型载荷的综合探测技术。在各载荷技术指标的地面研制过程中, 通过标准放射源、等效信号源、粒子加速器和标准磁场等不同方式进行标定和实验验证。结果表明, 多方向全能谱粒子探测的能量范围为30 keV~300 MeV, 精度优于10%; 磁场强度测量范围为−65023~+65023 nT, 精度优于0.73 nT; 电位探测范围为−32.4~+23.7 kV, 灵敏度优于10 V; 辐射剂量探测范围为0~3×104 rad (Si), 灵敏度优于8.3 rad (Si)。通过空间环境监测器Ⅱ型载荷对卫星运行轨道上的粒子辐射环境、原位磁场矢量变化、辐射剂量累积以及卫星表面电位变化等进行观测, 可以为航天活动、卫星设计、空间科学研究及空间天气预警预报业务提供必要的数据支撑。

关键词: 空间环境, 粒子探测, 电位探测, 辐射剂量, 磁场探测

Abstract:

To monitor the space environment and its effects in the low-Earth sun-synchronous orbit of China’s FY-3 satellite, a comprehensive detection technology based on the type Ⅱ loads of the space environment monitor is proposed. In the process of ground development, various technical indicators of the space environment comprehensive detection payload have been calibrated and experimentally verified by different methods such as standard radiation source, equivalent signal source, particle accelerator and standard magnetic field. The results show that the multi-direction full-spectrum particle detection achieves an energy range of 30 keV–300 MeV, with the accuracy of ≤10%. The magnetic field detection realizes the measurement range of −65023–+65023 nT, with the accuracy of ≤0.73 nT. The potential detection realizes the measurement range of −32.4–+23.7 kV, with the sensitivity of ≤10V. The detection of radiation dose realizes the measurement range of 0–3×104 rad (Si), with the sensitivity of ≤8.3 rad (Si). Through comprehensive observation of particle radiation environment, change of in-situ magnetic field vector, radiation dose accumulation and change of satellite surface potential in satellite operation orbit, the space environment monitor provides necessary data support for space activities, satellite design, space science research and space weather early warning and prediction. 

Key words: space environment, particle detection, potential detection, radiation dose, magnetic field detection