Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 46 / Number 2 / Pages 318-326
Hermann Renner, Devendra Sharma, Johann Kißlinger, Jean Boscary, Heinz Grote, Ralf Schneider
Fusion Science and Technology / Volume 46 / Number 2 / Pages 318-326
Format:electronic copy (download)
For the Wendelstein 7-X stellarator, an "open divertor" was chosen as a first step in divertor development for the expected extended magnetic and plasma parameter range. Particularly, the three-dimensional (3-D) geometry of the boundary and the provided stationary operation are challenges for the design. So far, simplified models have been used to specify the geometry of the divertor and the performance of the high-heat-load surfaces. By applying the 3-D codes that are now available, the results concerning local heat load and particle exhaust can have more detailed evaluation and can be confirmed generally. Together with the development of improved high-heat-load components, a significant reduction of the target area in comparison with the previous design is possible. The new specifications will be characterized.
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