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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 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
Originalveröffentlichung
DOI: 10.1063/1.5118338
Scopus
Zitationen: 2
Web of Science
Zitationen: 2
Dimensions
Zitationen: 2
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_H2020 (EU, H2020, 633053)
Nachgewiesen in Scopus
Dimensions
Web of Science
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