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High-power gyrotrons for electron cyclotron heating and current drive

Thumm, Manfred 1; Denisov, G. G.; Sakamoto, Keishi; Tran, Minh Quang
1 Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

In many tokamak and stellarator experiments around the globe that are investigating energy production via controlled thermonuclear fusion, electron cyclotron heating and current drive (ECH&CD) are used for plasma start-up, heating, non-inductive current drive and MHD stability control. ECH will be the first auxiliary heating method used on ITER. Megawatt-class, continuous wave (CW) gyrotrons are employed as high-power millimeter (mm)-wave sources. The present review reports on the worldwide state-of-the-art of high-power gyrotrons. Their successful development during the past years changed ECH from a minor to a major heating method. After a general introduction of the various functions of ECH&CD in fusion physics, especially for ITER, Section 2 will explain the fast-wave gyrotron interaction principle. Section 3 discusses innovations on the components of modern long-pulse fusion gyrotrons (magnetron injection electron gun (MIG), beam tunnel, cavity, quasi-optical output coupler, synthetic diamond output window, single-stage depressed collector) and auxiliary components (superconducting magnets, gyrotron diagnostics, high-power calorimetric dummy loads). ... mehr


Postprint §
DOI: 10.5445/IR/1000094602
Veröffentlicht am 09.05.2020
Originalveröffentlichung
DOI: 10.1088/1741-4326/ab2005
Scopus
Zitationen: 138
Web of Science
Zitationen: 118
Dimensions
Zitationen: 139
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Hochfrequenztechnik und Elektronik (IHE)
Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 0029-5515, 1741-4326
KITopen-ID: 1000094602
HGF-Programm 31.03.02 (POF III, LK 01) Plasma Heizsysteme
Erschienen in Nuclear fusion
Verlag International Atomic Energy Agency (IAEA)
Vorab online veröffentlicht am 08.05.2019
Nachgewiesen in Dimensions
Scopus
Web of Science
Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie
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