摘要
In this study,numerical simulation and discharge current tests were conducted on an inductively coupled radio frequency(RF)plasma cathode.Numerical simulations and experimental measurements were performed to study the factors influencing the electron extraction characteristics,including the gas type,gas flow,input power and extracting voltage.The simulation results were approximately consistent with the experimental results.We experimentally found that the RF input power mainly determines the extracted electron current.An electron current greater than 1 A was acquired at 270 W(RF input power),2.766 sccm(xenon gas).Our results prove that an inductively coupled RF plasma cathode can be reasonable and feasible,particularly for low power electric propulsion devices.
作者
Zongqi XU
Pingyang WANG
Zhiwei HUA
Shiyuan CONG
Shengnan YU
徐宗琦;王平阳;华志伟;从拾源;余盛楠(Institute of Engineering Thermophysics,School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,People's Republic of China;Key Laboratory of Materials Modification by Laser,Ion and Electron Beams(Ministry of Education),School of Physics,Dalian University of Technology,Dalian 116024,People's Republic of China)
基金
supported by Joint Fund for Equipment Preresearch and Aerospace Science and Technology(No.6141B061203)。
作者简介
王平阳,E-mail:wangpy@sjtu.edu.cn;徐宗绮,https://orcid.org/0000-0003-4351-0548。
