The influence of the edge density fluctuations on electron cyclotron wave beam propagation in tokamaks

N. Bertelli, A.A. Balakin, E. Westerhof, O.E. Garcia, Anders Henry Nielsen, Volker Naulin

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    A numerical analysis of the electron cyclotron (EC) wave beam propagation in the presence of edge density fluctuations by means of a quasi-optical code [Balakin A. A. et al, Nucl. Fusion 48 (2008) 065003] is presented. The effects of the density fluctuations on the wave beam propagation are estimated in a vacuum beam propagation between the edge density layer and the EC resonance absorption layer. Consequences on the EC beam propagation are investigated by using a simplified model in which the density fluctuations are described by a single harmonic oscillation. In addition, quasi-optical calculations are shown by using edge density fluctuations as calculated by two-dimensional interchange turbulence simulations and validated with the experimental data [O. E. Garcia et al, Nucl. Fusion 47 (2007) 667]
    Original languageEnglish
    Book seriesJournal of Physics: Conference Series (Online)
    Volume260
    Pages (from-to)012002
    ISSN1742-6596
    DOIs
    Publication statusPublished - 2010
    EventTheory of Fusion Plasmas: Joint Varenna–Lausanne International Workshop - Varenna (IT), 30 Aug - 3 Sep
    Duration: 1 Jan 2010 → …

    Conference

    ConferenceTheory of Fusion Plasmas: Joint Varenna–Lausanne International Workshop
    CityVarenna (IT), 30 Aug - 3 Sep
    Period01/01/2010 → …

    Keywords

    • Fusion energy

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