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Conceptual design of a modular EC heating system for EU-DEMO

Authors :
Alessandro Bruschi
Jean-Philippe Hogge
John Jelonnek
Dirk Strauss
Chuanren Wu
Gaetano Aiello
Kostas Avramidis
Benedetta Baiocchi
Daniel Birlan
René Chavan
Ioannis Chelis
Arnaud Clement
Aldo Collaku
Fabien Crisinel
Rosa Difonzo
Benjamin Ell
Francesco Fanale
Pierluigi Fanelli
Lorenzo Figini
Eleonora Gajetti
Gerd Gantenbein
Saul Garavaglia
Timothy P. Goodman
Stefan Illy
Zisis Ioannidis
Jambo Jin
George Latsas
Cinta L. Marraco Borderas
Stefan Marsen
Alessandro Moro
Marc Noël
Dimitrios Peponis
Tonio Pinna
Paola Platania
Natale Rispoli
Tobias Ruess
Tomasz Rzesnicki
Alessandra Salvitti
Laura Savoldi
Theo Scherer
Sabine Schreck
Alessandro Simonetto
Peter Spaeh
Sebastian Stanculovic
Torsten Stange
Manfred Thumm
Ioannis Tigelis
Christos Tsironis
Dietmar Wagner
Anastasia Xydou
Source :
Nuclear Fusion, Vol 64, Iss 10, p 106003 (2024)
Publication Year :
2024
Publisher :
IOP Publishing, 2024.

Abstract

The European DEMO (EU-DEMO) reactor studies within EUROfusion aim to develop a fusion power plant concept. The large tokamak device needs an auxiliary heating power which, at the present stage, is provided by the Electron Cyclotron (EC) heating system with up to 130 MW foreseen to reach different regions of plasma for heating, suppression of instabilities and the possibility to support ramp-up and ramp-down phases. The present conceptual design of the system is based on 2 MW coaxial-cavity gyrotron sources, a transmission line (TL) using both circular corrugated waveguides and quasi-optical evacuated multi-beam TLs, and mirror antennas located in the Equatorial Port. In order to create a modular system, the sources are grouped in ‘clusters’, whose powers are combined in the quasi-optical TL, up to the tokamak building, where they are split and routed as single waveguides. In the launcher, they are combined together again on the launching mirrors, to save space for the apertures in the Breeding Blanket. The present EC heating system has a certain flexibility to adapt to changing design guidelines. The development status of the system is presented.

Details

Language :
English
ISSN :
17414326 and 00295515
Volume :
64
Issue :
10
Database :
Directory of Open Access Journals
Journal :
Nuclear Fusion
Publication Type :
Academic Journal
Accession number :
edsdoj.11644d0ad6a4323980e84cb4cd061d9
Document Type :
article
Full Text :
https://doi.org/10.1088/1741-4326/ad66e3