摘要
The highest deposition of power and temperature is always near the cusp of the ATON-type Hall thruster.This shows that when there are electrons gathering at the cusp,the distribution of heat load will be uniform,which will potentially damage the reliability.Therefore,we optimize the magnetic field near the anode.We changed the magnetic field characteristics in the near-anode region with an additional magnetic screen,and performed numerical simulation with particle-incell simulation.The simulation results show that the magnetic field of the thruster with the additional magnetic screen can alleviate the over-concentration of power deposition on the anode and reduce the power deposition in the anode by 20%,while ensuring that the overall magnetic field characteristics do not change significantly.
作者
Hongbo SU
Hong LI
Yongjie DING
Liqiu WEI
Xu ZHANG
Chaoying ZHOU
Daren YU
苏宏博;李鸿;丁永杰;魏立秋;张旭;周超英;于达仁(Lab of Plasma Propulsion,Harbin Institute of Technology(HIT),Harbin 150001,People's Republic of China;Lab of Electric Drive&Propulsion Technology,Harbin Institute of Technology(HIT),Harbin 150001,People’s Republic of China;Institute of Telecommunication Satellite,China Academy of Space Technology,Beijing 100094,People's Republic of China;School of Mechanical and Electrical Automation,Harbin Institute of Technology(HIT),Shenzhen 518055,People’s Republic of China)
基金
the financial support from National Natural Science Foundation of China (Nos. 51777045, 51736003)
supply of the Hunan Science and Technology Innovation Project (No. 2019RS1102)
supply of the Shenzhen Technology Projects (No. JCYJ20170307151117299)。
