Macroparticle rotation in the vacuum arc plasma jet

E. Gidalevich*, S. Goldsmith, R. L. Boxman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The interaction of macroparticles (MP) with a surrounding vacuum arc plasma, was analyzed to find the internal current distribution in the MP, and its subsequent interaction with an imposed magnetic field. Conductive spherical macroparticles emitted from the cathode spots into a magnetized plasma duct were bombarded asymmetrically by the vacuum arc plasma jet (VAPG) ions and electrons. This asymmetry caused a difference of the electric potentials between points on the MP surface and an internal electric current. It was found that the interaction of the internal electric current with the magnetic field used for VAPG collimation, rotated the MP. For a MP radius of 0.1 μm, the rotation frequency reached 105s-1.

Original languageEnglish
Pages (from-to)2969-2974
Number of pages6
JournalJournal of Applied Physics
Issue number6
StatePublished - 15 Mar 2004


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