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Coaxial multistage depressed collector design for high power gyrotrons based on E×B concept

Ell, Benjamin ORCID iD icon 1; Pagonakis, Ioannis Gr. 1; Wu, Chuanren ORCID iD icon 1; Thumm, Manfred 1; Jelonnek, John 1
1 Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The gyrotron operational efficiency is considered as a very important factor of future fusion power plants. The development of an efficient multistage depressed collector (MDC) for the annular spent electron beam is the key for a significant increase in the operational efficiency. To achieve this target, a systematic investigation of all kinds of possible design approaches was conducted during the last decade at the Karlsruhe Institute of Technology. A promising approach using a cylindrical hollow collector design was found. In this work, another generic design approach based on the E × B drift concept for the spent electron beam is presented which uses a coaxial collector design. This new generic approach offers a significant improvement in the collector efficiency. Even more, it opens the path for the design of a large variety of new MDC collectors with different characteristics, e.g., the number of stages and the wall geometry.

Postprint §
DOI: 10.5445/IR/1000100010
Veröffentlicht am 18.11.2019
DOI: 10.1063/1.5118338
Zitationen: 7
Web of Science
Zitationen: 6
Zitationen: 7
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 11.2019
Sprache Englisch
Identifikator ISSN: 1070-664X, 1089-7674
KITopen-ID: 1000100010
HGF-Programm 31.03.02 (POF III, LK 01) Plasma Heizsysteme
Erschienen in Physics of plasmas
Verlag American Institute of Physics (AIP)
Band 26
Heft 11
Seiten 113107
Projektinformation EUROfusion (EU, H2020, 633053)
Nachgewiesen in Dimensions
Web of Science
Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie
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