Asymptotic Analysis of the Steady-State Current Flow in a Uniform Multicathode-Spot Generated Vacuum-Arc Plasma Flow

Isaac Izraeli, Alan M. Whitman, Raymond L. Boxman, Samuel Goldsmith

Research output: Contribution to journalArticlepeer-review

Abstract

The current distribution in a model multicathode-spot vacuum-arc generated uniform plasma flow is analyzed analytically by studying the asymptotic behavior of the magnetic transport equation in the limit of large electron-flow magnetic Reynolds number. It is found that the radial distribution of the axial current flow imposed at the cathode is maintained throughout most of the interelectrode region, and that a strong constriction of the current flow occurs in a narrow boundary layer adjacent to the anode surface. The results support the general trend observed in previous numerical solutions.

Original languageEnglish
Pages (from-to)281-284
Number of pages4
JournalIEEE Transactions on Plasma Science
Volume13
Issue number5
DOIs
StatePublished - Oct 1985

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