On Transient Time Reduction of a 2.4 GHz Relativistic Traveling Wave Oscillator with a Hollow Slow Wave System

E. M. Totmeninov, A. I. Klimov, V. Yu Konev, O. P. Kutenkov

Research output: Contribution to journalArticle


The decrease in the transient time in a relativistic microwave traveling wave oscillator, in which the interaction is carried out between the relativistic electron beam and the fundamental harmonic of the forward-traveling electromagnetic wave slowed down to the speed of light in the hollow slow wave system system, has been numerically and experimentally demonstrated. It is shown that in this mode a high beam-to-wave coupling impedance up to ≈10 Ω is achieved, which ensures reduction of the transient time. In the experiment, a microwave peak power of 210 ± 30 MW at a frequency of 2.45 GHz in a guiding magnetic field of 0.16 T was obtained. The efficiency of the oscillator to convert the power of the electron beam into microwave power was 17 ± 3%. At the beam current pulse duration of about 50 ns the microwave pulse duration was about 20 ns and the transient time was about 22 ns.

Original languageEnglish
Pages (from-to)1049-1053
Number of pages5
JournalTechnical Physics
Issue number7
Publication statusPublished - 1 Jul 2018


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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