Performance investigation of a low-power Hall thruster fed on iodine propellant  

作　　者：徐宗琦 王平阳 蔡东升 谭睿 姜文静 Zongqi XU;Pingyang WANG;Dongsheng CAI;Rui TAN;Wenjing JIANG(Institute of Engineering Thermophysics,School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,People’s Republic of China)

机构地区：[1]Institute of Engineering Thermophysics,School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,People’s Republic of China

出　　处：《Plasma Science and Technology》2024年第6期140-148,共9页等离子体科学和技术（英文版）

基　　金：supported by Joint Fund for Equipment Preresearch and Aerospace Science and Technology (No. 6141B061203)。

摘　　要：The common propellants used for electric thrusters, such as xenon and krypton, are rare, expensive,and difficult to acquire. Solid iodine attracts much attention with the advantages of low cost,extensive availability, low vapor pressure, and ionization potential. The performance of a lowpower iodine-fed Hall thruster matched with a xenon-fed cathode is investigated across a broad range of operation conditions. Regulation of the iodine vapor's mass flow rates is stably achieved by using a temperature control method of the iodine reservoir. The thrust measurements are finished utilizing a thrust target during the tests. Results show that thrust and anode-specific impulse increase approximately linearly with the increasing iodine mass flow rate.At the nominal power of 200 W class, iodine mass flow rates are 0.62 and 0.93 mg/s, thrusts are7.19 and 7.58 m N, anode specific impulses are 1184 and 826 s, anode efficiencies are 20.8%and 14.5%, and thrust to power ratios are 35.9 and 37.9 m N/k W under the conditions of 250 V,0.8 A and 200 V, 1.0 A, respectively. The operating characteristics of iodine-fed Hall thruster are analyzed in different states. Further work on the measurements of plasma characteristics and experimental optimization will be carried out.

关 键 词：electric propulsion Hall thruster iodine propellant thrust measurement operating characteristics 

分 类 号：V439.4[航空宇航科学与技术—航空宇航推进理论与工程]