Journal Article

PreJuSER-48329

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effect of the dynamic ergodic in the TEXTOR tokamak on MHD stability, plasma rotation and transport

Wolf, R.FZJ* ; Biel, W.FZJ* ; de Bock, M. F. M. ; Finken, K. H.FZJ* ; Günter, S. ; Hogeweij, G. M. D. ; Jachmich, S. ; Jakubowski, M. W. ; Jaspers, R. J. E. ; Krämer-Flecken, A.FZJ* ; Koslowski, H. R.FZJ* ; Lehnen, M.FZJ* ; Liang, Y.FZJ* ; Unterberg, B.FZJ* ; Varshney, S. K. ; von Hellermann, M. ; Yu, Q. ; Zimmermann, O.FZJ* ; Abdullaev, S. S.FZJ* ; Donné, A. J. H. ; Samm, U.FZJ* ; Schweer, B.FZJ* ; Tokar, M.FZJ* ; Westerhof, E.

2005
IAEA Vienna

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Please use a persistent id in citations: http://hdl.handle.net/2128/1893  doi:10.1088/0029-5515/45/12/026

Abstract: With the dynamic ergodic divertor in TEXTOR fundamental effects of the coupling of external magnetic field perturbations to the confined plasma have been studied. The non-linear coupling between external (m/n = 12/4) and internal modes (m/n = 3/1) has been investigated. The critical perturbation field (m/n = 3/1) for the excitation of an m/n = 2/1 tearing mode depends not only on the magnitude but also on the direction of the toroidal angular momentum input by neutral beam injection (NBI). Below the excitation threshold of this mode a toroidal spin-up of the plasma has been observed, which only depends on the strength of the perturbation field. It is independent of both the rotation direction of the external perturbation field and the toroidal angular momentum supplied by the NBI.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut für Plasmaphysik (IPP)

Research Program(s):

1. Kernfusion und Plasmaforschung (E05)

Appears in the scientific report 2005
Notes: This version is available at the following URL: http://dx.doi.org/10.1088/0029-5515/45/12/026

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Database coverage:

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