Relativistic Cherenkov Microwave Oscillator Without a Guiding Magnetic Field for the Electron-Beam Energy of 0.5 MeV

Author

Totmeninov, Eugene M. ; Klimov, Alexey I. ; Rostov, Vladislav V.

Author_Institution

Inst. of High Current Electron., SB Russian Acad. of Sci., Tomsk, Russia

Volume

38

Issue

10

fYear

2010

Firstpage

2944

Lastpage

2947

Abstract

The feasibility of a relativistic Cherenkov microwave oscillator with no magnetic field for an electron-beam energy of ~0.5 MeV is studied. The oscillator geometry, with an efficiency of electron-beam power conversion to microwave radiation of ~20%, is simulated. The estimated radiation power is 400 MW. In the experiment, stable oscillation with ~6% efficiency is realized, taking into account the total current of a planar diode producing the electron beam. The microwave peak power for the operating TM₀₁ wave was 140 ± 30 MW at 3.82 GHz.

Keywords

Cherenkov radiation; microwave oscillators; microwave tubes; relativistic electron beam tubes; electron beam energy; electron beam power conversion efficiency; electron volt energy 0.5 MeV; frequency 3.82 GHz; microwave peak power; microwave radiation power conversion; oscillator geometry; planar diode; power 140 MW; relativistic cherenkov microwave oscillator; total current; Antenna measurements; Electron beams; Microwave antennas; Microwave measurements; Microwave oscillators; Microwave theory and techniques; Preliminary modulation; relativistic Cherenkov oscillator without a guiding magnetic field; solid cylindrical electron beam;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2010.2060212

Filename

5551228