Approaching the theoretical limit of diamagnetic-induced momentum in a rapidly diverging magnetic nozzle

Kazunori Takahashi, Christine Charles, Rod W. Boswell

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Cross-field diffusion and plasma expansion in a rapidly diverging magnetic nozzle are controlled while maintaining constant plasma production in a contiguously attached radio frequency plasma source. It is demonstrated that the measured electron-diamagnetic-induced axial momentum increases with increasing magnetic field strength to approach the theoretical limit derived using an ideal nozzle approximation. The measured axial momentum exerted onto the axial and radial plasma source boundaries validate the prediction from a maximum electron pressure model on the back wall and from a zero net axial momentum model on the radial wall.

Original languageEnglish
Article number195003
JournalPhysical review letters
Volume110
Issue number19
DOIs
Publication statusPublished - 2013 May 8

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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