Experiment of Hall thruster plume effects on different ground experimental conditions

作     者：SU Yang CAI Guobiao HE Bijiao SHANG Shengfei LIU Peng LIANG Wei SU Yang;CAI Guobiao;HE Bijiao;SHANG Shengfei;LIU Peng;LIANG Wei

作者机构：School of AstronauticsBeijing University of Aeronautics and AstronauticsBeijing100191China Science and Technology on Reliability and Environmental Engineering LaboratoryBeijing Institute of Spacecraft Environment EngineeringChina Aerospace Science and Technology CorporationBeijing100094China Electric Propulsion DepartmentShanghai Institute of Space PropulsionChina Aerospace Science and Technology CorporationShanghai201112China 

出 版 物：《航空动力学报》 (Journal of Aerospace Power)

年 卷 期：2019年第34卷第7期

页      面：1568-1576页

核心收录：

学科分类：080703[工学-动力机械及工程] 082502[工学-航空宇航推进理论与工程] 08[工学] 0807[工学-动力工程及工程热物理] 0825[工学-航空宇航科学与技术] 

主　　题：vacuum exhaust plume sputtering effect deposition effect Hall thruster HET-40 

摘      要：Reducing the influence of back-sputtering effect can effectively improve the accuracy of the measurement of the Hall thruster plume *** crystal microbalance(QCM)was used to measure the deposition and sputtering distribution of HET-40 thruster plume on two different experimental conditions:case1,using liquid nitrogen heat sinks and case 2,without using liquid nitrogen heat ***,X-ray photoelectron spectroscopy(XPS)was used to analyze the composition of the QCM surface after two *** results of the two experiments showed that the sputtering rate under the condition of case 1 was slightly higher than case *** within the range of 90°to 110°relative to the thruster axis,case 1 experiment result showed sputtering effect,while case 2 experiment showed deposition *** analysis of the experimental results,it can be found that using liquid nitrogen heat sink to reduce the temperature of the inner wall surface of vacuum chamber can effectively adsorb the particles sputtered by the plume and reduce the concentration of back-sputtering particles,leading to the above phenomenon.