Overview of experiments with the dynamic ergodic divertor on TEXTOR

TitleOverview of experiments with the dynamic ergodic divertor on TEXTOR
Publication TypeJournal Article
Year of Publication2006
AuthorsK.H. Finken, S. Abdullaev, W. Biel, M.FM de Bock, S. Brezinsek, C. Busch, I. Classen, D. Harting, M. von Hellermann, S. Jachmich, M. Jakubowski, R. Jaspers, H.R Koslowski, A. Kramer-Flecken, Y. Kikuchi, M. Lehnen, Y. Liang, M. Kobayashi, A. Nicolai, A. Pospieszczyk, D. Reiter, T. Van Rompuy, U. Samm, O. Schmitz, G. Sergienko, B. Unterberg, E. Westerhof, RC Wolf, O. Zimmermann
JournalContributions to Plasma Physics
Volume46
Number7-9
Pagination515-526
Type of ArticleArticle
ISBN Number0863-1042
Accession NumberISI:000240895600007
Keywordsedge physics, ergodic divertor, ergodization, laminar zone, MAGNETIC-FIELD, MAPS, TOKAMAK, TRANSPORT
Abstract

The Dynamic Ergodic Divertor (DED) has recently been taken into operation on TEXTOR. The device is rather flexible and allows the investigation of very different questions. In the present context we concentrate on the divertor aspect and on results of the m/n=12/4 base mode. The DED-field generates the proper ergodic zone and an area of open magnetic field lines, the laminar zone and the tangle structure. The properties of the laminar zone resemble the divertor region of a poloidal divertor. However, the distribution of the density and temperature is highly 3D and strongly related to the structure of the laminar and ergodic zones. The structures of the heat and particle fluxes to the wall agree well with the predicted patterns. A prominent feature of the ergodization is the creation of an edge electric field which results in a rotation of the plasma. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

URL<Go to ISI>://000240895600007
Division

Fusion Physics

Department

Instrumentation development

PID

dcec18e9246035a216a640bda2b59a1e

Alternate TitleContrib. Plasma Phys.

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