ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)


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Glyavin M. Y., Zaslavskij V. J., Zavolskij N. A., Lesheva K. A., Zapevalov V. E., Rozental R. M., Sedov A. S. The influence of the azimuthal inhomogeneity of electron beam–microwave interaction on the operation regime of subterahertz gyrotrons. Izvestiya VUZ. Applied Nonlinear Dynamics, 2015, vol. 23, iss. 2, pp. 108-118. DOI: 10.18500/0869-6632-2015-23-2-108-118

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Russian
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Article
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621.385.69

The influence of the azimuthal inhomogeneity of electron beam–microwave interaction on the operation regime of subterahertz gyrotrons

Autors: 
Glyavin Mihail Yu., Institute of Applied Physics of the Russian Academy of Sciences
Zaslavskij Vladislav Jurevich, Institute of Applied Physics of the Russian Academy of Sciences
Zavolskij Nikolaj Aleksandrovich, Samara State University
Lesheva Ksenija Aleksandrovna, Federal state budgetary educational institution of higher professional education Nizhny Novgorod state University named N. And.Lobachevsky
Zapevalov Vladimir Evgenevich, Institute of Applied Physics of the Russian Academy of Sciences
Rozental Roman Markovich, Institute of Applied Physics of the Russian Academy of Sciences
Sedov Anton Sergeevich, Institute of Applied Physics of the Russian Academy of Sciences
Abstract: 

The investigation of operation regimes of CW/263 GHz/1kW gyrotron, developed at IAP RAS/GYCOM Ltd., was made by various numerical methods. The influence of the azimuthal inhomogeneity (such as electron beam radial misalignments and tilt) has been studied. The method of average equations and 3D PIC codes (CST Studio Suite and KARAT) were used. Results, achieved by different methods, are in agreement with experimental data. It is shown, that for feasible values of asymmetry, relative efficiency reduction can reach 40% from initial value. The possibility of future three-dimensional analysis of THz band gyrotrons with overside cavities and simultaneous azimuthal asymmetry of the electron beam and electrodynamics system by PIC codes has been demonstrated. 

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Received: 
20.04.2015
Accepted: 
20.04.2015
Published: 
31.07.2015
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