|Table of Contents|

Experimental study of spectrum analysis on discharge oscillation for hollow cathode(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2021年03期
Page:
83-89
Research Field:
研究与设计
Publishing date:

Info

Title:
Experimental study of spectrum analysis on discharge oscillation for hollow cathode
Author(s):
FENG JieZHAO YongWANG ShangminLIU ChaoYUE ShichaoJIA Yanhui
Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou Institute of Physics,Lanzhou 730000,China
Keywords:
hollow cathode discharge oscillation spectrum analysis FFT
PACS:
TG146.1
DOI:
-
Abstract:
At present,the large-batch module-level performance test for hollow cathodes mostly adopts metal anode structure,which is different from the situation that the hollow cathode uses positive ion beam as the anode in actual work.In order to verify the difference in the discharge characteristics of the hollow cathode when the metal electrode and the positive ion beam are used as the anode,a comparative experiment was designed,and the discharge characteristics,oscillation characteristics and frequency characteristics of the hollow cathode were analyzed in two cases.The test results and FFT analysis show that when the positive ion beam was used as the anode,the cathode will have multiple relevant frequency components between 2 MHz and 12 MHz; when the metal anode was used,the discharge stability of the hollow cathode is closely related to the gas flow.When the air flow is greater than the plume mode switching threshold,FFT analysis does not find the relevant spectral components.When the air supply flow is less than the switching threshold,the discharge voltage will have an oscillating component at 17 MHz.Increasing the air supply flow can effectively eliminate this component.The research results provide a theoretical basis for the improvement of the hollow cathode screening test.

References:

[1] MIKELLIDES I G,KATZ I,GOEBEL D.Partially-ionized gas and associated wear in electron sources for ion propulsion,II: discharge hollow Cathode[C]// 43rd Joint Propulsion Conference.Cincinnati,Ohio:AIAA,2007.
[2] KATZ I,MIKELLIDES I,GOEBEL D,et al.Production of high energy ions near an ion thruster discharge hollow cathode[C]//42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.Sacramento,California.Reston,Virginia: AIAA,2006.
[3] GOEBEL D M,JAMESON K,KATZ I.Plasma potential behavior and plume mode transitions in hollow cathode discharge[C]// 30th International Electric Propulsion Conference.Florence,Italy: IEPC,2007.
[4] MIKELLIDES I G,KATZ I,GOEBEL D M.Numerical simulation of the hollow cathode discharge plasma dynamics[C]// 29th International Electric Propulsion Conference.Princeton University.Princeton,New Jersey:IEPC,2005.
[5] GOEBEL D M,JAMESON K,KATZ I.Energetic ion production and keeper erosion in hollow cathode discharges[C]// 29th International Electric Propulsion Conference.Princeton University.Princeton,New Jersey: IEPC,2005.
[6] KERSLAKE W.SERT II-Durability of the hollow cathode and future applications of hollow cathodes[C]//7th Electric Propulsion Conference.Williamsburg,VA,USA.Reston,Virigina: AIAA,1969.
[7] KATZ I,MIKELLIDES I G,GOEBEL D M.Model of the plasma potential distribution in the plume of a hollow cathode[C]// 40th Joint Propulsion Conference.Ft Lauderdale,Florida:AIAA,2004.
[8] MIKELLIDES I G,KATZ I,GOEBEL D M.Towards the identification of the keeper erosion mechanisms:2-D theoretical model of the hollow cathode[C]// 42nd Joint Propulsion Conference.Sacramento,California:AIAA,2006.
[9] BOYD I D,CROFTON M W.Modeling the plasma plume of a hollow cathode[J].Journal of Applied Physics,2004,95(7): 3285-3296.
[10] MIKELLIDES I G,KATZ I,GOEBEL D M.Numerical simulation of the hollow cathode discharge plasma dynamics[C]//Proceedings of the International Electric Propulsion Conference.[S.l.]:IEPC,2005.
[11] 谢侃,张天平,武志文,等.离子发动机放电阴极的溅射腐蚀机理研究综述[J].真空科学与技术学报,2014,34(5): 461-468.
[12] 胡俊锋,刘辉,李建置,等.会切磁场推力器低频振荡特性[J].中国空间科学技术,2016,36(1): 26-34.
[13] 江滨浩,赵一男,魏立秋,等.霍尔推力器振荡问题的研究综述[J].宇航学报,2009,30(6): 2062-2071.
[14] 杨晶晶.磁场对霍尔推力器低频振荡的影响[D].哈尔滨: 哈尔滨工业大学,2009.
[15] GOEBEL D M,JAMESON K K,KATZ I,et al.Potential fluctuations and energetic ion production in hollow cathode discharges[J].Physics of Plasmas,2007,14(10): 103508.
[16] 贾艳辉,张天平.空间用六硼化镧空心阴极最新研究进展及发展趋势[J].真空科学与技术学报,2016,36(6): 690-698.
[17] 张天平.兰州空间技术物理研究所电推进新进展[J].火箭推进,2015,41(2): 7-12.ZHANG T P.New progress of electric propulsion technology in LIP[J].Journal of Rocket Propulsion,2015,41(2): 7-12.
[18] 郭宁,顾佐,邱家稳.空心阴极在空间技术中的应用[J].真空,2005,42(5): 32-35.

Memo

Memo:
-
Last Update: 1900-01-01