Stabilization of the Radiation Frequency of a Gyrotron with a Remote Reflector Under the Conditions of Interaction of the Equidistant-Spectrum Modes

• Published in: Radiophysics and quantum electronics Vol. 65; no. 8; pp. 566 - 577
• Main Authors: Bakunin, V. L., Denisov, G. G., Kuftin, A. N., Novozhilova, Y. V., Fokin, A. P., Zuev, A. S., Semenov, E. S.
• Format: Journal Article
• Language: English
• Published: New York Springer US 2023; Springer; Springer Nature B.V
• Subjects: Astronomy; Astrophysics and Astroparticles; Cyclotron resonance devices; Electron beams; Frequency stabilization; Hadrons; Heavy Ions; Lasers; Mathematical and Computational Physics; Nuclear Physics; Observations and Techniques; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; Plasma physics; Quantum Optics; Radiation; Theoretical
• ISSN: 0033-8443; 1573-9120
• DOI: 10.1007/s11141-023-10237-z

We study the possibility to stabilize the gyrotron frequency under the influence of a wave reflected from a remote output window during the competition of the operating mode with two neighboring modes, which have frequencies equally spaced from the frequency of the operating mode. The window is assumed to reflect radiation at the frequency of the operating mode and be transparent for the neighboring modes. The influence of the shift of the reflector within the limits of several wavelengths on the frequency stabilization is considered. The fluctuations in the frequency and phase of the radiation, which are caused by low-frequency technical noises of the accelerating voltage of the electron beam, in a stand-alone gyrotron and a gyrotron with a reflection are compared. The calculations were performed for the megawatt gyrotron with a frequency of 170 GHz and the operating TE mode, which was developed at the Institute of Applied Physics of the Russian Academy of Sciences (IAP).