Investigation of a millimeter-wavelength-range relativistic diffraction generator

Author

Bugaev, S.P. ; Cherepenin, V.A. ; Kanavets, V.I. ; Koshelev, V.I. ; Popov, V.A. ; Vlasov, A.N.

Author_Institution

High Current Electron. Inst., Acad. of Sci., Tomsk, USSR

Volume

18

Issue

3

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

518

Lastpage

524

Abstract

A theoretical and experimental study has been made of the operation of a millimeter-wavelength-range sectional relativistic diffraction generator (RDG). Microwave power transported into the atmosphere with the peak parameters of 3.5 and 4.5 GW at the wavelengths of 6.5 to 6.8 mm and 9 to 11.3 mm, respectively, has been obtained. The power at the generator output, up to a horn antenna, has reached 7 and 9 GW for each of the regimes, respectively, the electronic efficiency being equal to approximately 30%. Plasma formed in a slow-wave structure of the RDG is shown to be of considerable importance for radiation pulse duration limitation. Experiments aimed at increasing the pulse duration up to 0.7 μs have been performed. Theoretical investigation of the beam interaction with a slow-wave structure field has shown that the generation frequency may be determined by the resonance features due to the transverse motion of beam electrons

Keywords

microwave generation; microwave oscillators; relativistic electron beam tubes; 0.7 mus; 3.5 GW; 4.5 GW; 6.5 to 6.8 mm; 7 GW; 9 GW; 9 to 11.3 mm; gamma accelerator; millimeter-wavelength-range relativistic diffraction generator; slow-wave structure; Diffraction; Diodes; Electron beams; Lead; Microwave generation; Power generation; Pulse generation; Surface waves; Switches; Voltage;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.55923

Filename

55923