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Triode magnetron injection gun for the KIT 2 MW 170 GHz coaxial cavity gyrotron

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

Abstract (englisch):
Considering the recent understanding of the physics of electron trapping mechanisms taking place in the magnetron injection gun (MIG) region of gyrotrons and the sensitivity of the emitter ring manufacturing tolerances on the electron beam quality, a MIG has been designed and manufactured for the 2 MW, 170 GHz coaxial cavity gyrotron developed at Karlsruhe Institute of Technology. The new MIG has the following novelties: (i) the design satisfies the criteria for the suppression of the electron trapping mechanisms, (ii) a new type of emitter ring is used for the suppression of the influence of the manufacturing tolerances and misalignments on the quality of the generated electron beam, and (iii) the design was optimized to generate a good beam quality in a wide variety of magnetic field profiles to increase the flexibility. An additional important feature of the new triode MIG design is the possibility to operate with only two power supplies by using a special start-up scenario. The first experimental results of the coaxial cavity gyrotron with the new MIG are presented.

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Verlagsausgabe §
DOI: 10.5445/IR/1000105690
Veröffentlicht am 29.05.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2020
Sprache Englisch
Identifikator ISSN: 1070-664X, 1089-7674
KITopen-ID: 1000105690
HGF-Programm 31.03.02 (POF III, LK 01)
Plasma Heizsysteme
Erschienen in Physics of plasmas
Band 27
Heft 2
Seiten Article no: 023105
Projektinformation EUROfusion (EU, H2020, 633053)
Nachgewiesen in Scopus
Web of Science
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