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

W7-X Team; Niemann, H.; Drewelow, P.; Jakubowski, M. W.; Puig Sitjes, A.; Cannas, B.; Gao, Y.; Pisano, F.; König, R.; Burhenn, R.; Hacker, P.; Reimold, F.; Zhang, D.; Brunner, K. J.; Knauer, J.; Sunn Pedersen, T.; Gantenbein, Gerd; Huber, Martina; Illy, Stefan; Jelonnek, John; Kobarg, Thorsten; ... mehr

Abstract (englisch):
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).



Originalveröffentlichung
DOI: 10.1088/1741-4326/ab937a
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 08.2020
Sprache Englisch
Identifikator ISSN: 0029-5515, 1741-4326
KITopen-ID: 1000121068
HGF-Programm 31.03.02 (POF III, LK 01)
Plasma Heizsysteme
Erschienen in Nuclear fusion
Band 60
Heft 8
Seiten 084003
Projektinformation EUROfusion (EU, H2020, 633053)
Vorab online veröffentlicht am 03.07.2020
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