Title :
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
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;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2010.2060212
