Coaxial configuration of the dielectric Cherenkov maser

Author

Garate, Eusebio P. ; Fisher, Amnon ; Main, William G.

Author_Institution

Dept. of Phys., California Univ., Irvine, CA, USA

Volume

18

Issue

5

fYear

1990

fDate

10/1/1990 12:00:00 AM

Firstpage

831

Lastpage

836

Abstract

The linearized Lorentz force, continuity equation, and Maxwell´s equations are used to calculate the system dispersion relation for a coaxial configuration of the dielectric Cherenkov maser. The system consists of two coaxial conductors lined with dielectric and an annular relativistic electron beam, which propagates between the two liners. The dispersion relation for the beam and dielectric-lined coaxial waveguide structure and the no-beam system that describes the dependence of the generated frequency on the coaxial waveguide parameters are presented. Using the linearized dispersion relation, the growth rate for the beam-TM_0n waveguide mode instability is calculated in the strong-coupling tenuous beam limit

Keywords

dispersion relations; electron beams; masers; waveguide theory; Maxwell´s equations; annular relativistic electron beam; beam-TM_0n; coaxial configuration; continuity equation; dielectric Cherenkov maser; dielectric-lined coaxial waveguide structure; dispersion relation; linearized Lorentz force; strong-coupling tenuous beam limit; waveguide mode instability; Coaxial components; Conductors; Dielectrics; Dispersion; Electromagnetic waveguides; Electron beams; Masers; Maxwell equations; Microwave propagation; Waveguide components;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.62350

Filename

62350