Wave Dispersion and Resonant Deposition Profiles of Electron-Cyclotron Gaussian Beams in Toroidal Plasmas

S. Cirant, S. Nowak, A. Orefice

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Abstract

A peculiarity of the quasi-optical propagation of a Gaussian beam of electromagnetic waves is that it requires a treatment taking account, step by step, of all of its rays together. The dispersion relation from which such a ray-tracing may be deduced is in fact characterized not only by the medium where the beam is launched but also by the intrinsic beam structure. The behaviour of three-dimensional Gaussian beams in the electron-cyclotron frequency range is considered, with particular attention paid to their propagation in toroidal plasmas of fusion interest (with ITER-like parameters and various magnetic equilibrium configurations), to the generality of their launching conditions and to their power deposition profiles around resonant layers. © 1995, Cambridge University Press. All rights reserved.
Original languageEnglish
Pages (from-to)345 - 364
Number of pages20
JournalJournal of Plasma Physics
Volume53
Issue number3
DOIs
Publication statusPublished - 1995
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physics and Astronomy(all)

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