Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks

Mikko Alava, Olgierd Dumbrajs, Jukka Heikkinen, Thorbjörn Hellsten, Seppo Karttunen, Taina Kurki-Suonio, Mervi Mantsinen, Timo Pättikangas, Rainer Salomaa, Seppo Sipilä

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The effect of the Alfven resonance on the power deposition in fast wave current drive scenarios of ITER and possible efficiency enhancement of lower hybrid (LH) current drive by alpha particles are investigated. The mode conversion from the fast wave to the slow wave is found to remain smaller than 20%. Monte Carlo simulations show that for ITER parameters the power transfer from the alpha particles to the LH wave can be 15% of the alpha power if the LH waves can penetrate to the flux surface ρ/α = 0.5.
    Original languageEnglish
    Title of host publicationPlasma Physics and Controlled Nuclear Fusion Research 1994
    Subtitle of host publicationProceedings of an International Conference on Plasma Physics and Controlled Nuclear Fusion Research
    Place of PublicationVienna
    PublisherInternational Atomic Energy Agency IAEA
    Pages581-587
    Volume3
    ISBN (Print)92-0-103795-3
    Publication statusPublished - 1996
    MoE publication typeA4 Article in a conference publication
    Event15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research - Seville, Spain
    Duration: 26 Sep 19941 Oct 1994

    Publication series

    SeriesIAEA Proceedings
    NumberSTI/PUB/948
    ISSN0074-1884

    Conference

    Conference15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research
    Country/TerritorySpain
    CitySeville
    Period26/09/941/10/94

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