Effect of the Hollow Cathode Heat Power on the Performance of an Hall-Effect Thruster  

作　　者：宁中喜 于达仁 李鸿 闫国军 

机构地区：[1]HIT Plasma Propulsion Laboratory(HPPL),Harbin Institute of Technology

出　　处：《Plasma Science and Technology》2009年第2期194-199,共6页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (No. 50676026)

摘　　要：Effect of the hollow cathode heat power on the performance of a Hall-effect thruster is investigated. The variations in the Hall-effect thruster＇s performance （thrust, specific impulse and anode efficiency） with the hollow cathode heat power was obtained from the analysis of the experimental data. Through an analysis on the coupling relationship between the electrons emitted from the hollow cathode and the environmental plasma, it was found that the heat power would affect the electron emission of the emitter and the space potential of the coupling zone, which would lead to a change in the effective discharge voltage. The experimental data agree well with the results of calculation which can be used to explain the experimental phenomena.Effect of the hollow cathode heat power on the performance of a Hall-effect thruster is investigated. The variations in the Hall-effect thruster＇s performance （thrust, specific impulse and anode efficiency） with the hollow cathode heat power was obtained from the analysis of the experimental data. Through an analysis on the coupling relationship between the electrons emitted from the hollow cathode and the environmental plasma, it was found that the heat power would affect the electron emission of the emitter and the space potential of the coupling zone, which would lead to a change in the effective discharge voltage. The experimental data agree well with the results of calculation which can be used to explain the experimental phenomena.

关 键 词：hollow cathode Hall thruster plasma bridge 

分 类 号：O53[理学—等离子体物理]