Theory of pressure-induced islands and self-healing in three-dimensional toroidal magnetohydrodynamic equilibria

A. Bhattacharjee, T. Hayashi, C. C. Hegna, N. Nakajima, T. Sato

Research output: Contribution to journalArticle

39 Scopus citations

Abstract

The role of singular currents in three-dimensional toroidal equilibria and their resolution by magnetic island formation is discussed from both analytical and computational points of view. Earlier analytical results are extended to include, small vacuum islands, which may, in general, have different phases with respect to pressure-induced islands. In currentless stellarators, the formation of islands is shown to depend on the resistive parameter DR, as well as the integrated effect of global Pfirsch-Schlüter currents. It is demonstrated that the pressure-induced "self-healing" effect, recently discovered, computationally, is also, predicted by analytical theory.

Original languageEnglish (US)
Pages (from-to)883-888
Number of pages6
JournalPhysics of Plasmas
Volume2
Issue number3
DOIs
StatePublished - 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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