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Operating a full tungsten actively cooled tokamak: overview of WEST first phase of operation

Bucalossi, J. ; Achard, J.; Agullo, O.; Alarcon, T.; Allegretti, L.; Ancher, H.; Antar, G.; Antusch, S. 1; Anzallo, V.; Arnas, C.; Arranger, D.; Artaud, J. F.; Aumeunier, M. H.; Baek, S. G.; Bai, X.; Balbin, J.; Balorin, C.; Barbui, T.; Barbuti, A.; ... mehr

Abstract:

WEST is an MA class superconducting, actively cooled, full tungsten (W) tokamak, designed to operate in long pulses up to 1000 s. In support of ITER operation and DEMO conceptual activities, key missions of WEST are: (i) qualification of high heat flux plasma-facing components in integrating both technological and physics aspects in relevant heat and particle exhaust conditions, particularly for the tungsten monoblocks foreseen in ITER divertor; (ii) integrated steady-state operation at high confinement, with a focus on power exhaust issues. During the phase 1 of operation (2017–2020), a set of actively cooled ITER-grade plasma facing unit prototypes was integrated into the inertially cooled W coated startup lower divertor. Up to 8.8 MW of RF power has been coupled to the plasma and divertor heat flux of up to 6 MW m−2 were reached. Long pulse operation was started, using the upper actively cooled divertor, with a discharge of about 1 min achieved. This paper gives an overview of the results achieved in phase 1. Perspectives for phase 2, operating with the full capability of the device with the complete ITER-grade actively cooled lower divertor, are also described.


Verlagsausgabe §
DOI: 10.5445/IR/1000143687
Veröffentlicht am 11.03.2022
Originalveröffentlichung
DOI: 10.1088/1741-4326/ac2525
Scopus
Zitationen: 41
Web of Science
Zitationen: 38
Dimensions
Zitationen: 47
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Hochfrequenztechnik und Elektronik (IHE)
Institut für Mess- und Regelungstechnik mit Maschinenlaboratorium (MRT)
Institut für Angewandte Materialien – Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 01.04.2022
Sprache Englisch
Identifikator ISSN: 0029-5515, 1741-4326
KITopen-ID: 1000143687
Erschienen in Nuclear Fusion
Verlag International Atomic Energy Agency (IAEA)
Band 62
Heft 4
Seiten Art.-Nr.: 042007
Vorab online veröffentlicht am 10.02.2022
Nachgewiesen in Dimensions
Scopus
Web of Science
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