[Table of Contents]

Plasma and Fusion Research

Volume 5, S1002 (2010)

Regular Articles

Wendelstein 7-X – a Technology Step towards Demo
Hans-Stephan BOSCH and the Wendelstein 7-X Team
Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, D-17491 Greifswald, Germany
(Received 22 January 2009 / Accepted 25 May 2009 / Published 26 March 2010)

Abstract

The Wendelstein 7-X stellarator, presently under construction in Greifswald, will be the first “fully-optimized” stellarator device which combines a quasi-symmetric magnetic field configuration with superconducting coils, a steady state exhaust concept, steady state heating at high power and a size sufficient to reach high nTτ-values. W7-X has been optimized numerically by J. Nührenberg et al., based on the concept of quasi-isodynamicity. Its key element is an optimized magnetic field configuration, generated by 50 non-planar superconducting coils. It is the mission of this project to demonstrate the reactor potential of the optimized stellarator line. Most of the components have been fabricated already and four out of ten half-modules of the magnet system have been assembled up to now. This paper presents an overview of the status of construction and a summary of the future developments.

Keywords

Wendelstein 7-X, optimized stellarator, construction, assembly

DOI: 10.1585/pfr.5.S1002

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This paper may be cited as follows:

Hans-Stephan BOSCH and the Wendelstein 7-X Team, Plasma Fusion Res. 5, S1002 (2010).