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.
[1]
J. Schlosser,et al.
Experience feedback from high heat flux component manufacturing for Tore Supra
,
2001
.
[2]
H. Greuner,et al.
The Capabilities of Steady State Operation at the Stellarator W7-X with Emphasis on Divertor Design
,
2000
.
[3]
H. Grote,et al.
Overview of EU CFCs development for plasma facing materials
,
1998
.
[4]
A. Durocher,et al.
Ten years of maintenance on Tore Supra actively cooled components
,
2000
.
[5]
Steven J. Zinkle,et al.
ITER R&D: Vacuum Vessel and In-Vessel Components: Materials Development and Test
,
2001
.