Journal Article

PreJuSER-38026

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Suppression of large edge-localized modes in high-confinement DIII-D plasmas with a stochastic magnetic boundary

Evans, T. E. ; Moyer, R. A. ; Thomas, P. R. ; Watkins, J. G. ; Osborne, T. H. ; Boedo, J. A. ; Doyle, E. J. ; Fenstermacher, M. E. ; Finken, K. H.FZJ* ; Groebner, R. J. ; Harris, J. H. ; LaHaye, R. J. ; Lasnier, C. J. ; Masuzaki, S. ; Ohyabu, N. ; Pretty, D. G. ; Rhodes, T. L. ; Reimerdes, H. ; Rudakov, D. L. ; Schaffer, M. J. ; Wang, G. ; Zeng, L.

2004
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/1834  doi:10.1103/PhysRevLett.92.235003

Abstract: A stochastic magnetic boundary, produced by an applied edge resonant magnetic perturbation, is used to suppress most large edge-localized modes (ELMs) in high confinement (H-mode) plasmas. The resulting H mode displays rapid, small oscillations with a bursty character modulated by a coherent 130 Hz envelope. The H mode transport barrier and core confinement are unaffected by the stochastic boundary, despite a threefold drop in the toroidal rotation. These results demonstrate that stochastic boundaries are compatible with H modes and may be attractive for ELM control in next-step fusion tokamaks.

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 2004
Notes: This version is available at the following Publisher URL: http://prl.aps.org

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