Cherenkov radiation with arbitrary azimuthal mode number excited in a plasma-filled slow-wave waveguide

Journal Article · Fri Dec 01 04:00:00 EST 1995 · International Journal of Infrared and Millimeter Waves

OSTI ID:244106

Wu, Jianqiang; Liu, Shenggang; Mo, Yuanlong ^[1]

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1. Univ. Electronic Science and Technology of China, Sichuan (China)

On the basis of the reference, excitation of Cherenkov radiation with arbitrary azimuthal mode number by a thin annular relativistic electron beam in a plasma-filled dielectric-lined slow-wave waveguide is studied in this paper. A determinantal dispersion equation is obtained. This general dispersion equation is valid for arbitrary azimuthal mode number, and the growth rate of the wave is derived from it. Finally, the effects of the background plasma density on the dispersion relation, the background plasma density and the electron beam radius on the growth rate of the wave are presented. Formulas and results offered in this paper are general, and are of particular value of reference to the beam-wave interaction in azimuthally unsymmetrical slow-wave waveguide.

• OSTI ID: 244106
• Journal Information: International Journal of Infrared and Millimeter Waves, Journal Name: International Journal of Infrared and Millimeter Waves Journal Issue: 12 Vol. 16; ISSN 0195-9271; ISSN IJIWDO
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
66 PHYSICS
BEAM-PLASMA SYSTEMS
BOUNDARY CONDITIONS
CHERENKOV RADIATION
DISPERSION RELATIONS
ELECTRON BEAMS
EXCITATION
PLASMA DENSITY
WAVE EQUATIONS
WAVE PROPAGATION
WAVEGUIDES