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
CountrySpain
CitySeville
Period26/09/941/10/94

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    Alava, M., Dumbrajs, O., Heikkinen, J., Hellsten, T., Karttunen, S., Kurki-Suonio, T., Mantsinen, M., Pättikangas, T., Salomaa, R., & Sipilä, S. (1996). Simulations of RF current drive and interaction of alpha particles with waves in Tokamaks. In Plasma Physics and Controlled Nuclear Fusion Research 1994: Proceedings of an International Conference on Plasma Physics and Controlled Nuclear Fusion Research (Vol. 3, pp. 581-587). International Atomic Energy Agency IAEA. IAEA Proceedings, No. STI/PUB/948