High-n stability of alpha particle driven Alfven eigenmodes

G. Vlad, F. Zonca, F. Romanelli

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

In the present work, we analyse the two dimensional (2-D) mode structures and global stability of the Alfven branches, whose frequencies are close to the toroidicity induced Alfven continuum gap. The fully 2-D problem is solved using a two spatial-scale WKBJ formalism without employing perturbation theory in treating drive and damping terms. A code that solves the 2-D mode structures and global stability of the Alfven branches is presented. Applications to a model toroidal equilibrium with ITER relevant plasma parameters are analysed. Results indicate that no unstable modes are present in the considered reference scenario.
Original languageEnglish
Article numberI29
Pages (from-to)1651 - 1659
Number of pages9
JournalNuclear Fusion
Volume35
Issue number12
DOIs
Publication statusPublished - 1995
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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