Matching characteristics of magnetic field configuration and chamfered channel wall in a magnetically shielded Hall thruster

Zhaoyu WANG (王昭宇); Hong LI (李鸿); Chao ZHONG (钟超); Yanlin HU (扈延林); Yongjie DING (丁永杰); Liqiu WEI (魏立秋); Daren YU (于达仁)

doi:10.1088/2058-6272/ac2121

Plasma Science and Technology > 2021 > 23(10): 104008. > DOI: 10.1088/2058-6272/ac2121

Zhaoyu WANG (王昭宇), Hong LI (李鸿), Chao ZHONG (钟超), Yanlin HU (扈延林), Yongjie DING (丁永杰), Liqiu WEI (魏立秋), Daren YU (于达仁). Matching characteristics of magnetic field configuration and chamfered channel wall in a magnetically shielded Hall thruster[J]. Plasma Science and Technology, 2021, 23(10): 104008. DOI: 10.1088/2058-6272/ac2121

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Matching characteristics of magnetic field configuration and chamfered channel wall in a magnetically shielded Hall thruster

¹ Lab of Plasma Propulsion, Harbin Institute of Technology, Harbin 150001, People's Republic of China
² Key Laboratory of Aerospace Plasma Propulsion, Ministry of Industry and Information Technology, Harbin 150001, People's Republic of China
³ Beijing Institute of Control Engineering, Beijing 100190, People's Republic of China

Funds: This work was funded by National Natural Science Foundation of China (Nos. 52076054 and 51736003), Civil Aerospace Technology Pre-research Project (No. D03015), and Defense Industrial Technology Development Program (No. JCKY2019603B005).

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Received Date: March 03, 2021
Revised Date: August 20, 2021
Accepted Date: August 24, 2021

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Abstract

To date, the selection of the magnetic field line used to match the chamfered inner and outer channel walls in a magnetically shielded Hall thruster has not been quantitatively studied. Hence, an experimental study was conducted on a 1.35 kW magnetically shielded Hall thruster with a xenon propellant. Different magnetic field lines were chosen, and corresponding tangentially matched channel walls were manufactured and utilized. The results demonstrate that high performance and a qualified anti-sputtering effect cannot be achieved simultaneously. When the magnetic field lines that match the chamfered wall have a strength at the channel centerline of less than 12% of the maximum field strength, the channel wall can be adequately protected from ion sputtering. When the magnetic field lines have a strength ratio of 12%–20%, the thruster performance is high. These findings provide the first significant quantitative design reference for the match between the magnetic field line and chamfered channel wall in magnetically shielded Hall thrusters.
- magnetically shielded Hall thruster,
- magnetic field line,
- chamfered channel wall,
- tangent matching

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1.	Liu, Q., Li, Y., Hu, Y. et al. Effects of Magnetic Field Gradient on the Performance of a Magnetically Shielded Hall Thruster. Aerospace, 2023, 10(11): 942. DOI:10.3390/aerospace10110942
2.	Wang, Z., Li, H., Hu, Y. et al. Expanding the design freedom of the chamfered wall shape of a magnetically shielded Hall thruster. Vacuum, 2023. DOI:10.1016/j.vacuum.2022.111603
3.	Wang, L., Xu, Y., Ding, Y. et al. Effects of the peak magnetic field location on discharge performance of a 100-W Hall thruster with large gradient magnetic field. Vacuum, 2022. DOI:10.1016/j.vacuum.2022.110965
4.	Thoreau, P., Little, J. Influence of Field Topology on Magnetically Shielded Hall Thruster Plume Divergence. IEEE Aerospace Conference Proceedings, 2022. DOI:10.1109/AERO53065.2022.9843247
5.	Tang, H., Yu, D., Wang, H. et al. Special issue on selected papers from CEPC 2020. Plasma Science and Technology, 2021, 23(10): 100101. DOI:10.1088/2058-6272/ac22f7

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Matching characteristics of magnetic field configuration and chamfered channel wall in a magnetically shielded Hall thruster

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