Stable confinement of a high-beta toroidal plasma

S. C. Prager, J. H. Halle, M. W. Phillips, R. S. Post, J. C. Twichell

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

A plasma with β ≈ 12% has been stably confined in the Levitated Octupole. Although the single-fluid ballooning-instability beta limit is exceeded on the outer flux surfaces, no such mode is observed. Finite-ion-gyroradius effects may account for the observed stability. The single-fluid calculation indicates that the amplitude of the most unstable mode is nearly uniform along the magnetic field line with only slight peaking in the bad-curvature region. The particle confinement time is one quarter of the classical value.

Original languageEnglish (US)
Pages (from-to)635-638
Number of pages4
JournalNuclear Fusion
Volume20
Issue number5
DOIs
StatePublished - May 1980
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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