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Water-cooled target modules for steady-state operation of the W7-X divertor

MPS-Authors
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Boscary,  J.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Greuner,  H.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

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Czerwinski,  M.
W7-X: Construction, Max Planck Institute for Plasma Physics, Max Planck Society;

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Mendelevitch,  B.
Central Technical Service (ZTE), Max Planck Institute for Plasma Physics, Max Planck Society;

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Pfefferle,  K.
Max Planck Institute for Plasma Physics, Max Planck Society;

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Renner,  H.
W7-X: Construction, Max Planck Institute for Plasma Physics, Max Planck Society;

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Citation

Boscary, J., Greuner, H., Czerwinski, M., Mendelevitch, B., Pfefferle, K., & Renner, H. (2003). Water-cooled target modules for steady-state operation of the W7-X divertor. Nuclear Fusion, 43, 831-834. doi:10.1088/0029-5515/43/9/306.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0027-3EF8-4
Abstract
The stellarator WENDELSTEIN 7-X (W7-X) includes water-cooled plasma facing components (PFCs) to allow steady-state operation and to provide an efficient particle and power exhaust up to 10 MW for a maximum pulse duration of 30 min. Ten divertor units are arranged along the helical edge of the fivefold periodic plasma column. The three-dimensional shape and positioning of the target surfaces are optimized to address physics issues for a wide range of experimental parameters, which influence the topology of the boundary. The three-dimensional target surfaces are reproduced by a series of consecutive plane target elements as a set of parallel water-cooled elements positioned onto the frameworks of target modules. The design and arrangement of target modules and elements are described.