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Overview of KIT activities on high power, high frequency gyrotron development and the role of the new FULGOR teststand at KIT

Gantenbein, Gerd; Avramidis, Konstantinos A.; Illy, Stefan; Ioannidis, Zisis C.; Jin, Jianbo; Jelonnek, John; Kalaria, Parth C.; Pagonakis, Ioannis Gr.; Ruess, Sebastian; Ruess, Tobias; Rzesnicki, Tomasz; Thumm, Manfred; Wu, Chuanren

Abstract (englisch):
For a future DEMOnstration fusion power plant two challenging trends with respect to gyrotron features are recognized: (a) the operating frequency will be above 200 GHz and (b) the requested total efficiency of the gyrotron should be as high as possible.
ECRH systems for future plants (DEMO) or Fusion Power Plants (FPP) will most probably require multi-megawatt and continuous wave gyrotrons which are able to oscillate at a frequency significantly above 200 GHz. The coaxial cavity technology which is under investigation and development at KIT since several years, seems to have the optimum properties to fulfill the requirements towards sub-THz operation in the MW output power regime. To benefit from these advantages and to profit from the existing experience on this technology the modular 2 MW 170 GHz gyrotron has been taken as a starting point for a 170/204/238 GHz multi-frequency gyrotron design study. Recent activities for improvement of the performance of this gyrotron and preparations for long pulse operation will be shown. In a first step we aim at ~ 100 ms operation, in a second step, with the tube being equipped with an improved cooling system, 1 s operation is envisaged. ... mehr

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DOI: 10.5445/IR/1000090433
Veröffentlicht am 09.08.2019
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Vortrag
Jahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000090433
HGF-Programm 31.03.02 (POF III, LK 01)
Veranstaltung 7th International Workshop on Far-Infrared Technologies (IW-FIRT 2019), Fukui, Japan, 05.03.2019 – 07.03.2019
Projektinformation EUROfusion (EU, H2020, 633053)
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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