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

作     者：Zhaoyu Wang Hong Li Chao Zhong Yanlin Hu Yongjie Ding Liqiu Wei Daren Yu 王昭宇;李鸿;钟超;扈延林;丁永杰;魏立秋;于达仁

作者机构：Lab of Plasma PropulsionHarbin Institute of TechnologyHarbin 150001People's Republic of China Key Laboratory of Aerospace Plasma PropulsionMinistry of Industry and Information TechnologyHarbin 150001People's Republic of China Beijing Institute of Control EngineeringBeijing 100190People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2021年第23卷第10期

页      面：72-80页

核心收录：

学科分类：080703[工学-动力机械及工程] 082502[工学-航空宇航推进理论与工程] 08[工学] 0807[工学-动力工程及工程热物理] 0825[工学-航空宇航科学与技术] 

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

主　　题：magnetically shielded Hall thruster magnetic field line chamfered channel wall tangent matching 

摘      要：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 k W 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.