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  Influence of magnetic field configurations on divertor plasma parameters in the W7-AS stellarator

Grigull, P., McCormick, K., Feng, Y., Werner, A., Brakel, R., Ehmler, H., et al. (2003). Influence of magnetic field configurations on divertor plasma parameters in the W7-AS stellarator. Journal of Nuclear Materials, 313-316, 1287-1291. doi:10.1016/S0022-3115(02)01499-X.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-2F86-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-0314-8
Genre: Journal Article

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 Creators:
Grigull, P.1, Author              
McCormick, K.2, 3, Author              
Feng, Y.3, 4, Author              
Werner, A.1, Author              
Brakel, R.5, Author              
Ehmler, H.2, 6, Author              
Gadelmeier, F.7, Author              
Hartmann, D.8, Author              
Hildebrandt, D.9, Author              
Jaenicke, R.3, 5, Author              
Kisslinger, J.5, Author              
Klinger, T.2, 6, Author              
König, R.1, Author              
Naujoks, D.9, Author              
Niedermeyer, H.10, Author              
Ramasubramanian, N.11, Author
Sardei, F.4, Author              
Wagner, F.5, Author              
Wenzel, U.9, Author              
W7-AS Team11, Author
Affiliations:
1W7-X: Physics (PH), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856305              
2Stellarator Scenario Development (E5), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856285              
3W7-AS, Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856310              
4W7-X: Theory, Max Planck Institute for Plasma Physics, Max Planck Society, ou_persistent22              
5Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856291              
6VINETA, Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856311              
7External Organizations, ou_persistent22              
8Technology (TE), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856318              
9Plasma Diagnostics Group (HUB), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856324              
10W7-X: Construction, Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856314              
11Max Planck Institute for Plasma Physics, Max Planck Society, Boltzmannstraße 2, D-85748 Garching, DE, ou_1856284              

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Free keywords: 15th International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 15), Gifu, 2002-05-26 to 2002-05-31
 Abstract: The new island divertor in W7-AS enables quasi steady-state operation with NBI at very high density including scenarios with stable detachment from the targets. Experiments with reversed B-field indicate that the interaction zones on the targets are affected in first order by E×B drifts. Stable detachment is restricted to magnetic field configurations with sufficiently large separation between x-points and targets and not too small field line pitch inside the islands. It is always partial in the sense that it does not extend over the full target area. This inhomogeneity is ascribed to an in/out asymmetry of the electron temperature at the upstream separatrix position.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Journal of Nuclear Materials
  Alternative Title : J. Nucl. Mater.
Source Genre: Journal
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Publ. Info: Copyright © 2003 Elsevier Science B.V. All rights reserved
Pages: - Volume / Issue: 313-316 Sequence Number: - Start / End Page: 1287 - 1291 Identifier: -