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

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.
Authors:
 [1] ;  [2] ; ;  [1]
  1. Institute of Applied Physics of the Russian Academy of Sciences, 46, Ul'yanov St., Nizhny Novgorod (Russian Federation)
  2. (Russian Federation)
Publication Date:
OSTI Identifier:
22408230
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BOUNDARY CONDITIONS; ELECTRONS; EQUATIONS; INTERACTIONS; MICROWAVE AMPLIFIERS; MODE LOCKING; OSCILLATORS; RESONATORS; SIGNALS; SIMULATION; TIME DEPENDENCE