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  Divertor concept for the W7-X stellarator and mode of operation

Renner, H., Boscary, J., Greuner, H., Grote, H., Hoffmann, F. W., Kisslinger, J., et al. (2002). Divertor concept for the W7-X stellarator and mode of operation. Plasma Physics and Controlled Fusion, 44(6), 1005-1019.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-4105-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-4106-5
Genre: Journal Article

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 Creators:
Renner, H.1, Author              
Boscary, J.2, Author              
Greuner, H.2, Author              
Grote, H.1, Author              
Hoffmann, F. W.3, Author
Kisslinger, J.4, 5, Author              
Strumberger, E.6, 7, Author              
Mendelevitch, B.8, Author              
Affiliations:
1W7-X: Construction, Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856314              
2Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856328              
3Max Planck Society, ou_persistent13              
4Experimental Plasma Physics 3 (E3), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856291              
5W7-AS, Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856310              
6Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856309              
7Relativistic Plasmas, Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856330              
8Central Technical Service (ZTE), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856299              

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 Abstract: A favourable property of the stellarator concept is the potential of stationary operation within a magnetic configuration maintained by a superconducting coil system. For proof of principle the stellarator Wendelstein 7-X is presently under construction at Greifswald, Germany, and the start of operation is planned for 2007. The magnetic configuration of the confinement is a non-axisymetric three-dimensional configuration with a helix-like magnetic axis and five identical magnetic field periods. As a first-step divertor design, an open divertor structure has been chosen, which benefits from the inherent divertor property of the magnetic configuration. The system will allow an effective particle and energy exhaust for a wide range of plasma and magnetic parameters. Experimental tools, e.g. localized heating, various heating schemas, gas feed and pellet injection, impurity doping and variation of the pumping speed together with appropriate diagnostics are provided. The purpose is to investigate different modes of operation for the divertor system and to evaluate an extended database for further improvement of the divertor. The main heating method will be 140 GHz ECR as a cw heat source of 10 MW. Additional heating schemes are ICRF and NBI.

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Language(s): eng - English
 Dates: 2002-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 21137
ISI: 000177105000026
 Degree: -

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Title: Plasma Physics and Controlled Fusion
  Alternative Title : Plasma Phys. Control. Fusion
Source Genre: Journal
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Pages: - Volume / Issue: 44 (6) Sequence Number: - Start / End Page: 1005 - 1019 Identifier: ISSN: 0741-3335