Analysis of the primary experimental results on a 5 cm diameter ECR ion thruster  

作　　者：柯于俊 孙新锋 陈学康 田立成 张天平 郑茂繁 贾艳辉 江豪成 

机构地区：[1]Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou Institute of Physics,Lanzhou 730000,People's Republic of China

出　　处：《Plasma Science and Technology》2017年第9期91-96,共6页等离子体科学和技术（英文版）

基　　金：supported in part by the fund of Science and Technology on Vacuum Technology and the Physics Laboratory of Lanzhou Institute of Physics under grant YSC0715;in part by the National Natural Science Foundation of China under grant 62601210;in part by the Civil Aerospace Technology Research Project under grant D010509

摘　　要：An ECR ion thruster with a diameter of 5 cm has been developed and tested. Four different antenna positions were experimentally and numerically investigated, and the results suggest that the optimal location for the antenna is where it is perfectly surrounded by the electron cyclotron resonance layer. We also evaluated two different antenna configurations, and found that the star configuration is preferable to the circular configuration, and also that the circular antenna is only 40% as efficient as the star antenna. The experimental curve of the ion beam current and voltage agrees with the fitting results from the analytic solution. The simulation of the magnetic topology in the discharging chamber with different back yoke heights indicates that it needs to be further verified.An ECR ion thruster with a diameter of 5 cm has been developed and tested. Four different antenna positions were experimentally and numerically investigated, and the results suggest that the optimal location for the antenna is where it is perfectly surrounded by the electron cyclotron resonance layer. We also evaluated two different antenna configurations, and found that the star configuration is preferable to the circular configuration, and also that the circular antenna is only 40% as efficient as the star antenna. The experimental curve of the ion beam current and voltage agrees with the fitting results from the analytic solution. The simulation of the magnetic topology in the discharging chamber with different back yoke heights indicates that it needs to be further verified.

关 键 词：antenna fitting chamber topology circular verified propulsion perfectly propellant figure 

分 类 号：V439.1[航空宇航科学与技术—航空宇航推进理论与工程]