Narrowing of the Emission Spectrum of a Gyrotron with External Reflections

A. A. Bogdashov; M. Yu. Glyavin; R. M. Rozental’; A. P. Fokin; V. P. Tarakanov

doi:10.1134/S1063785018030069

Narrowing of the Emission Spectrum of a Gyrotron with External Reflections

Authors: Bogdashov A.A.¹, Glyavin M.Y.¹, Rozental’ R.M.¹, Fokin A.P.¹, Tarakanov V.P.²^,3
Affiliations:
1. Institute of Applied Physics
2. National Research Nuclear University Moscow Engineering Physics Institute
3. Joint Institute for High Temperatures
Issue: Vol 44, No 3 (2018)
Pages: 221-224
Section: Article
URL: https://journals.rcsi.science/1063-7850/article/view/207466
DOI: https://doi.org/10.1134/S1063785018030069
ID: 207466

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Abstract

The stabilizing influence of external reflections on gyrotron operation has been demonstrated in direct particle-in-cell modeling. A model with a temporal realization duration providing an opportunity to calculate frequency characteristics with a relative accuracy no worse than 2 × 10^–6 has been used for the first time. An almost twofold reduction in the spectrum width of a 28-GHz gyrotron has been observed experimentally after the introduction of reflections of the output signal.