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Upgrade of the Computer-Controlled Test System for the Excitation of Very High-Order Modes in Waveguides

Ruess, Tobias; Avramidis, Konstantinos A.; Gantenbein, Gerd; Ioannidis, Zisis C.; Illy, Stefan; Lutz, Felix C.; Rzesnicki, Tomasz; Thumm, Manfred; Wagner, Dietmar; Weggen, Jörg; Jelonnek, John

Abstract (englisch):
Fusion gyrotrons are operating in highly oversized cavities to achieve a RF output power in the range of several MW [1]. Before installation into the gyrotron the proper verification of the utilized oversized waveguide components, e.g. the quasi-optical mode converter, is mandatorily required to prevent failures. The quasi-optical mode converter consists of the launcher and mirrors. The verification can be performed using a quasi-optical mode generator [2], which is used in a low-power test setup. The verification procedure is done in two steps. In a first step, the required gyrotron mode is excited in a specially for this purpose designed cavity [3], which is the most challenging and time consuming part of the measurement. The excited mode can be used in the second step to verify the quasi-optical system. The current mode generator setup at KIT is already presented in [4]. It is equipped with high-precision linear drivers for a computer-controlled adjustment. In the present work, this mode generator is upgraded in hardware and software. For the hardware modification, a goniometer is installed, where nowadays a fully computer-controlled adjustment using all degrees of freedom is possible. ... mehr



Zugehörige Institution(en) am KIT Institut für Hochfrequenztechnik und Elektronik (IHE)
Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Vortrag
Jahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000097203
HGF-Programm 31.03.02 (POF III, LK 01)
Veranstaltung Workshop on RF Heating Technology of Fusion Plasmas (US-EU-JPN RF Heating Technology Workshop) (2019), Freiburg im Breisgau, Deutschland, 09.09.2019 – 12.09.2019
Projektinformation EUROfusion (EU, H2020, 633053)
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