Strong Scattering of High Power Millimeter Waves in Tokamak Plasmas with Tearing Modes

TitleStrong Scattering of High Power Millimeter Waves in Tokamak Plasmas with Tearing Modes
Publication TypeJournal Article
Year of Publication2009
AuthorsE. Westerhof, S.K. Nielsen, J.W Oosterbeek, M. Salewski, MR de Baar, W.A Bongers, A. Burger, B.A. Hennen, S.B Korsholm, F. Leipold, D. Moseev, M. Stejner, D.J Thoen
JournalPhysical Review Letters
Volume103
Number12
Pagination4
Date PublishedSep
Type of ArticleArticle
ISBN Number0031-9007
Accession NumberISI:000270139000030
KeywordsCURRENT DRIVE, STABILIZATION, TEXTOR
Abstract

In tokamak plasmas with a tearing mode, strong scattering of high power millimeter waves, as used for heating and noninductive current drive, is shown to occur. This new wave scattering phenomenon is shown to be related to the passage of the O point of a magnetic island through the high power heating beam. The density determines the detailed phasing of the scattered radiation relative to the O-point passage. The scattering power depends strongly nonlinearly on the heating beam power.

URL<Go to ISI>://000270139000030
Division

Fusion Physics

PID

fd0bba0765bb9baa4741a5ec2bffbee1

Alternate TitlePhys. Rev. Lett.

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