Effects of segmented electrode in Hall current plasma thrusters

Y. Raitses, M. Keidar, D. Staack, N. J. Fisch

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

Segmented electrodes placed along a ceramic channel in a Hall thruster are shown to influence significantly the plasma potential distribution. Both the radial potential and the axial acceleration region are sensitive to the location of the segmented electrodes. The measured and theoretical potential profiles appear to be affected in detail by the electrode material (graphite) having lower secondary electron emission than the ceramic channel walls. The measured plasma potential profile is shown as well to correlate with the observed and desirable narrowing of the plasma plume emanating from the thruster.

Original languageEnglish (US)
Pages (from-to)4906-4911
Number of pages6
JournalJournal of Applied Physics
Volume92
Issue number9
DOIs
StatePublished - Nov 1 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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