A low-energy ion spectrometer with half-space entrance for three-axis stabilized spacecraft

Autor: Yiren Li, Qi An, Zhenpeng Su, XiaoPing Yang, Zonghao Pan, Guangyuan Yuan, RenXiang Hu, Zhe Cao, XiaoQing Zhong, Xu Shan, Shubin Liu, Wei Qi, Bo Wang, Feng Li, Changqing Feng, WeiHang Zhang, ManMing Chen, BingLin Qiu, SiPei Shao, ChunKai Xu, Guyue Dai, Xin Li, Chenglong Shen, Yuming Wang, Kai Liu, Tielong Zhang, Dan Fan, Shuwen Wang, Xinjun Hao
Rok vydání: 2018
Předmět:
Zdroj: Science China Technological Sciences. 62:1015-1027
ISSN: 1869-1900
1674-7321
DOI: 10.1007/s11431-018-9288-8
Popis: A low-energy ion spectrometer (LEIS) for use aboard three-axis stabilized spacecraft has been developed to measure ion energy per charge distribution in three-dimensional space with good energy-, angular- and temporal-resolutions. For the standard top-hat electrostatic analyzer used widely in space plasma detection, three-axis stabilized spacecraft makes it difficult to obtain complete coverage of all possible ion arrival directions. We have designed angular scanning deflectors supplementing to a cylindrically symmetric top-hat electrostatic analyzer to provide a half-space field of view as 360°×90° (–45°–+45°), and fabricated the LEIS flight model for detecting magnetospheric ions in geosynchronous orbit. The performance of this payload has been evaluated in detail by a series of simulation and environmental tests, and the payload has also been calibrated through laboratory experiments using a low-energy ion source. The results show that capabilities of the LEIS payload are in accordance with the requirements of a magnetospheric mission.
Databáze: OpenAIRE
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