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A new 3MW ECRH system at 105 GHz for WEST

Delpech, Lena ; Alberti, Stefano; Avramidis, Konstantinos; Ayreault, Aline; Batal, Tristan; Bernard, Jean-Michel; Bouquey, Francis; Chelis, Ioannis; Clairet, Frederic; Corbel, Elodie; Doceul, Louis; Durand, Frederic; Dumont, Remi; Fonghetti, Theo; Gantenbein, Gerd 1; Garibaldi, Pascal; Giruzzi, Gerardo; Goodman, Tim; Hogge, Jean-Philippe; ... mehr

Abstract:

The aim of the WEST experiments is to master long plasma pulses (1000s) and expose ITER-like tungsten wall to deposited heat fluxes up to 10 MW/m$^2$. To increase the margin to reach the H-Mode and to control W-impurities in the plasma, the installation of an upgraded ECRH heating system, with a gyrotron performance of 1MW/1000s per unit, is planned in 2023. With the modifications of Tore Supra to WEST, simulations at a magnetic field B$_0$∼3.7T and a central density n$_{e0}$∼6 × 10$^{19}$ m$^{−3}$ show that the optimal frequency for central absorption is 105 GHz. For this purpose, a 105 GHz/1MW gyrotron (TH1511) has been designed at KIT in 2021, based on the technological design of the 140 GHz/1.5 MW (TH1507U) gyrotron for W7-X. Currently, three units are under fabrication at THALES. In the first phase of the project, some of the previous Tore Supra Electron Cyclotron (EC) system components will be re-installed and re-used whenever possible. This paper describes the studies performed to adapt the new ECRH system to 105 GHz and the status of the modifications necessary to re-start the system with a challenging schedule.


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Originalveröffentlichung
DOI: 10.1016/j.fusengdes.2022.113360
Scopus
Zitationen: 4
Web of Science
Zitationen: 4
Dimensions
Zitationen: 6
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 01.2023
Sprache Englisch
Identifikator ISSN: 0920-3796
KITopen-ID: 1000153892
HGF-Programm 31.13.02 (POF IV, LK 01) Plasma Heating & Current Drive Systems
Erschienen in Fusion Engineering and Design
Verlag Elsevier
Band 186
Seiten Article no: 113360
Vorab online veröffentlicht am 05.12.2022
Nachgewiesen in Web of Science
Dimensions
Scopus
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