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Author Peacock, A. ♦ Boscary, J. ♦ Czerwinski, M. ♦ Ehrke, G. ♦ Greuner, H. ♦ Junghanns, P. ♦ Mendelevitch, B. ♦ Smirnow, M. ♦ Stadler, R. ♦ Tittes, H. ♦ Tretter, J.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2013
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword Heating ♦ Plasmas ♦ Tiles ♦ Heat sinks ♦ Geometry ♦ Graphite ♦ Prototypes ♦ Stellarator ♦ Divertor ♦ In-Vessel Components ♦ Baffle ♦ First Wall ♦ Water-cooled ♦ W7-X
Abstract The actively water-cooled In-Vessel Components (IVCs) of the stellarator Wendelstein 7-X consist of the divertor, the first wall protection components, the port liners, each designed for different loading conditions, and the associated pipework, the control coils, the cryo-pump system, the Glow discharge electrodes, and a set of diagnostics. The divertor, designed for high heat fluxes, is a set of 10 target and baffle units arranged along the plasma surface. The design and production of these high heat flux (HHF) components is a challenging task. The divertor target elements, which are based on flat CFC (carbon-carbon fibre composite) tiles bonded via active metal casting onto CuCrZr cooling structures required intensive development and testing to reach a reliable performance; removing, under stationary conditions, 10 $MW/m^{2}.$ Industrially manufactured high quality target elements have been delivered and assessed, and the process of incorporating them into assembly units, so-called modules, has begun. The time scale for the completion of the HHF divertor has been held for the last four years and the final delivery of the HHF divertor is still planned in 2017. In parallel to the realization of the divertor the remaining IVCs have been defined, developed, designed and fabricated and the installation of many of these components has begun. Some of these components can also be expected, for a short period of time, to receive high heat loads approaching those of the divertor. These components will be described, in detail, from conception to realization.
Description Author affiliation: EURATOM Assoc., Max Planck Inst. for Plasma Phys., Greifswald, Germany (Czerwinski, M.; Ehrke, G.) || EURATOM Assoc., Max Planck Inst. for Plasma Phys., Garching, Germany (Peacock, A.; Boscary, J.; Greuner, H.; Junghanns, P.; Mendelevitch, B.; Smirnow, M.; Stadler, R.; Tittes, H.; Tretter, J.)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-06-10
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781479901715
Size (in Bytes) 0.97 MB
Page Count 8
Starting Page 1
Ending Page 8


Source: IEEE Xplore Digital Library