Theoretical Analysis of the Stability of the Single-Mode Generation Regime in the Gyrotron

We discuss the question of the stability of the single-mode generation regime in the gyrotron. An example of a gyrotron with the fixed Gaussian structure of the high-frequency field is used to analyze theoretically the instability mechanism during the interaction of modes with the quasiequidistant s...

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Bibliographic Details
Published in:Radiophysics and quantum electronics 2023-07, Vol.66 (2-3), p.143-156
Main Authors: Adilova, A. B., Grigoryeva, N. V., Rozhnev, A. G., Ryskin, N. M.
Format: Article
Language:English
Subjects:
Analysis
Astronomy
Astrophysics and Astroparticles
Boundaries
Cyclotron resonance devices
Hadrons
Heavy Ions
Lasers
Mathematical and Computational Physics
Nuclear Physics
Observations and Techniques
Optical Devices
Optics
Parameters
Photonics
Physics
Physics and Astronomy
Plasma physics
Quantum Optics
Stability analysis
Structural stability
Theoretical
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Summary:We discuss the question of the stability of the single-mode generation regime in the gyrotron. An example of a gyrotron with the fixed Gaussian structure of the high-frequency field is used to analyze theoretically the instability mechanism during the interaction of modes with the quasiequidistant spectra on the assumption that the amplitudes of the spurious modes are low. The boundaries of the stability domain for the operating mode on the parameter plane “cyclotron resonance mismatch—normalized current parameter” are plotted at various densities of the mode spectrum. It is shown that at growing mode spectrum density, the structure of the stability domain of the operating mode becomes complicated and the domain dimensions become smaller. The boundaries obtained theoretically agree well with the results of the calculations within the framework of the multimode gyrotron theory.
ISSN:0033-8443
1573-9120
DOI:10.1007/s11141-023-10282-8