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Large wetted areas of divertor power loads at Wendelstein 7-X

H. Niemann, P. Drewelow, M. W. Jakubowski, A. Puig Sitjes, B. Cannas, Y. Gao, F. Pisano, R. König, R. Burhenn, P. Hacker2020年被引用 8Nuclear FusionIF 3出版社

Wendelstein 7-X(W7-X), an optimized stellarator, conducted its first divertor operation. It uses an island divertor concept for the heat and particle exhaust. Large wetted areas of up to 1.5 m2 have been reached, showing the benefits of the divertor concept and very efficient heat flux spreading. Moreover, a positive scaling of the wetted area with increasing SOL power is observed, which is important for operations at high input power. A definition of the wetted area is made based on thermographic camera observations for the 3D structure of W7-X with comparability to the definitions of other machines (e.g. tokamaks).

日本語訳

最適化ステラレータであるWendelstein 7-X(W7-X)は、初のダイバータ運転を実施した。熱と粒子の排気にはアイランドダイバータ方式を採用している。最大1.5 m2の大きな濡れ面積が達成され、ダイバータ方式の利点と非常に効率的な熱流束の拡散が示された。さらに、高入力パワーでの運転にとって重要である、SOLパワー増加に伴う濡れ面積の正のスケーリングが観測された。濡れ面積の定義は、W7-Xの3次元構造に対するサーモグラフィカメラ観測に基づいて、他の装置(例えばトカマク)の定義と比較可能な形でなされた。

装置

wendelstein-7x高精度(タイトル一致)

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DivertorWendelstein
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