Title :
Design of a 10kW/28GHz gyrotron with a segmented emitter using controlled-porosity reservoir cathodes
Author :
Malygin, Anton ; Illy, Stefan ; Pagonakis, Ioannis ; Piosczyk, Bernhard ; Kern, Stefan ; Weggen, Joerg ; Thumm, Manfred ; Avramides, Kostas ; Ives, Lawrence ; Marsden, David
Author_Institution :
Assoc. EURATOM-KIT, Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany
Abstract :
In this paper, the design of a 10kW/28GHz gyrotron tube with an emitter ring based on a controlled-porosity reservoir (CPR) cathode is presented. CPR emitters provide significantly higher current density (up to 50 A/cm2), as well as, longer life time (105 hours) than conventional emitters. The main goals of this experimental tube are to evaluate the use of CPR emitters for gyrotron applications, as well as to study the effect of non-uniform emission on gyrotron operation.
Keywords :
cathodes; gyrotrons; microwave tubes; porosity; CPR emitters; controlled-porosity reservoir cathodes; emitter segmentation; frequency 28 GHz; gyrotron; higher current density; nonuniform emission; power 10 kW; Anodes; Cathodes; Cavity resonators; Electron beams; Electron tubes; Gyrotrons; Reservoirs; Cathodes; controlled porosity; electron guns;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4673-0188-6
Electronic_ISBN :
978-1-4673-0187-9
DOI :
10.1109/IVEC.2012.6262184
