A low-energy ion spectrometer with large field of view and wide energy range onboard a Chinese GEO satellite

Shan Xu; Miao Bin; Cao Zhe; Sun Zhenyu; Li Yiren; Liu Kai; Qu Sanbiao; Guo Xingyu; Su Zhenpeng; Shen Chenglong; Pan Zonghao; Li Xin; Hao Xinjun; Yang Xiaoping; Tian Chao; Jiang Yu; Liu Shubin; An Qi; Chen Xiangjun; Wang Yuming

doi:10.1515/astro-2022-0210

Open Astronomy (Feb 2023)

A low-energy ion spectrometer with large field of view and wide energy range onboard a Chinese GEO satellite

Shan Xu,
Miao Bin,
Cao Zhe,
Sun Zhenyu,
Li Yiren,
Liu Kai,
Qu Sanbiao,
Guo Xingyu,
Su Zhenpeng,
Shen Chenglong,
Pan Zonghao,
Li Xin,
Hao Xinjun,
Yang Xiaoping,
Tian Chao,
Jiang Yu,
Liu Shubin,
An Qi,
Chen Xiangjun,
Wang Yuming

Affiliations

Shan Xu: Hefei National Research Center for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
Miao Bin: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
Cao Zhe: State Key Laboratory of Particle Detection and Electronics (IHEP-USTC), Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
Sun Zhenyu: State Key Laboratory of Particle Detection and Electronics (IHEP-USTC), Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
Li Yiren: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
Liu Kai: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
Qu Sanbiao: Hefei National Research Center for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
Guo Xingyu: Hefei National Research Center for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
Su Zhenpeng: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
Shen Chenglong: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
Pan Zonghao: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
Li Xin: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
Hao Xinjun: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
Yang Xiaoping: Shandong Institute of Space Electronic Technology, Yantai, 264003, China
Tian Chao: State Key Laboratory of Astronautic Dynamics, Xi’an Satellite Control Center, Xi’an710043, China
Jiang Yu: State Key Laboratory of Astronautic Dynamics, Xi’an Satellite Control Center, Xi’an710043, China
Liu Shubin: State Key Laboratory of Particle Detection and Electronics (IHEP-USTC), Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
An Qi: State Key Laboratory of Particle Detection and Electronics (IHEP-USTC), Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
Chen Xiangjun: Hefei National Research Center for Physical Sciences at the Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
Wang Yuming: Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China

DOI: https://doi.org/10.1515/astro-2022-0210
Journal volume & issue: Vol. 32, no. 1
pp. 2007 – 2016

Abstract

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A low-energy ion spectrometer (LEIS), onboard a Chinese navigation satellite in geosynchronous orbit, is one of the primary instruments for plasma detection. The LEIS is implemented by combining a top-hat electrostatic analyzer with a pair of angular scanning deflectors, which enables us to achieve in situ measurement of energetic ions in three-dimensional (3D) space with a large field of view of 360° × 90° and a wide energy range from 50 eV to 25 keV per charge. The key performance parameters including analyzer constant, geometric factor, linear relation function between elevation angles and deflector voltages, and the energy or angular resolutions have been determined by using detailed simulations and calibration experiments on the ground. The preliminary results from on-orbit observations demonstrate that the capability of the present LEIS payload can well meet the mission requirements for sampling the low-energy ion distributions in 3D space, measuring the negative satellite surface potential, and monitoring the magnetospheric storm or substorm activities.

Published in Open Astronomy

ISSN: 2543-6376 (Online)
Publisher: De Gruyter
Country of publisher: Poland
LCC subjects: Science: Astronomy
Website: https://www.degruyter.com/view/j/astro

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