Interchange stability of non-circular reversed field pinches

D. A. Skinner, S. C. Prager, A. M.M. Todd

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

He interchange (Mercier) stability of toroidal reversed field pinch plasmas with non-circular cross-section has been evaluated numerically. Marginally stable pressure profiles and beta values have been produced. Most shapes, such as indented or vertically elongated, reduce the stability by making the net magnetic curvature of the poloidal field dominated plasmas yet worse than that of circular configurations. The stability of horizontally elongated plasmas is slightly enhanced compared with that of circular plasmas as a result of increased shear produced by toroidicity. This shear enhancement by toroidal shift of magnetic surfaces might be exploited in future, more comprehensive studies.

Original languageEnglish (US)
Pages (from-to)306-311
Number of pages6
JournalNuclear Fusion
Volume28
Issue number2
DOIs
StatePublished - Feb 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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