Journal Article

FZJ-2017-05171

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Confinement in Wendelstein 7-X limiter plasmas

Hirsch, M. (Corresponding author) ; Dinklage, A. ; Alonso, A. ; Fuchert, G. ; Bozhenkov, S. ; Höfel, U. ; Andreeva, T. ; Baldzuhn, J. ; Beurskens, M. ; Bosch, H.-S. ; Beidler, C. D. ; Biedermann, C. ; Blanco, E. ; Brakel, R. ; Burhenn, R. ; Buttenschön, B. ; Cappa, A. ; Czarnecka, A. ; Endler, M. ; Estrada, T. ; Fornal, T. ; Geiger, J. ; Grulke, O. ; Harris, J. H. ; Hartmann, D. ; Jakubowski, M. ; Klinger, T. ; Knauer, J. ; Kocsis, G. ; König, R. ; Kornejew, P. ; Krämer-Flecken, A.FZJ* ; Krawczyk, N. ; Krychowiak, M. ; Kubkowska, M. ; Ksiazek, I. ; Langenberg, A. ; Laqua, H. P. ; Lazerson, S. ; Maaßberg, H. ; Marushchenko, N. ; Marsen, S. ; Moncada, V. ; Moseev, D. ; Naujoks, D. ; Otte, M. ; Pablant, N. ; Pasch, E. ; Pisano, F. ; Rahbarnia, K. ; Schröder, T. ; Stange, T. ; Stephey, L. ; Szepesi, T. ; Sunn Pedersen, T. ; Trimino Mora, H. ; Thomsen, H. ; Tsuchiya, H. ; Turkin, Y. ; Weir, G. ; Wenzel, U. ; Werner, A. ; Wolf, R. ; Wurden, G. A. ; Zhang, D. ; Wauters, T.

2017
IAEA Vienna

This record in other databases:    

Please use a persistent id in citations: doi:10.1088/1741-4326/aa7372

Abstract: Observations on confinement in the first experimental campaign on the optimized Stellarator Wendelstein 7-X are summarized. In this phase W7-X was equipped with five inboard limiters only and thus the discharge length restricted to avoid local overheating. Stationary plasmas are limited to low densities  <2–3 centerdot 1019 m−3. With the available 4.3 MW ECR Heating core T e ~ 8 keV, T i ~ 1–2 keV are achieved routinely resulting in energy confinement time τ E between 80 ms to 150 ms. For these conditions the plasmas show characteristics of core electron root confinement with peaked T e-profiles and positive E r up to about half of the minor radius. Profiles and plasma currents respond to on- and off-axis heating and co- and counter ECCD respectively.

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Contributing Institute(s):

1. Plasmaphysik (IEK-4)

Research Program(s):

1. 171 - Stellarator Research (POF3-171) (POF3-171)

Appears in the scientific report 2017

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Database coverage:
Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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