Time-domain self-consistent theory of frequency-locking regimes in gyrotrons with low-Q resonators

Journal Article · Sun Mar 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4913672· OSTI ID:22408230

Sergeev, A. S.; Zotova, I. V. ^[1]

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1. Institute of Applied Physics of the Russian Academy of Sciences, 46, Ul'yanov St., Nizhny Novgorod (Russian Federation)

A time-domain theory of frequency-locking gyrotron oscillators with low-Q resonators has been developed. The presented theory is based on the description of wave propagation by a parabolic equation taking into account the external signal by modification of boundary conditions. We show that the developed model can be effectively used for simulations of both single- and multi-mode operation regimes in gyrotrons driven by an external signal. For the case of low-Q resonators typical for powerful gyrotrons, the external signal can influence the axial field profile inside the interaction space significantly and, correspondingly, the value of the electron orbital efficiency.

• OSTI ID: 22408230
• Journal Information: Physics of Plasmas, Vol. 22, Issue 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BOUNDARY CONDITIONS
ELECTRONS
EQUATIONS
INTERACTIONS
MICROWAVE AMPLIFIERS
MODE LOCKING
OSCILLATORS
RESONATORS
SIGNALS
SIMULATION
TIME DEPENDENCE