Relativistic electron beam propagation and experimental design for an X-band backward-wave oscillator

Author

Rosenbury, E.T. ; Rhodes, Michelle ; Camacho, J. Frank ; Poole, B.R.

fYear

1990

fDate

21-23 May 1990

Firstpage

134

Abstract

Summary form only given, as follows. An 8.5-GHz backward-wave oscillator (BWO) experiment has been designed and performed. Measurements of beam parameters including energy, current, and rotation were performed. Issues concerning microwave pulse shortening were investigated. The design values are V_beam=1 MV, a beam current of 1-7 kA, and a pulse length of ≈60 ns. An annular beam is generated with possible radii 7, 8, and 9 mm. The beam is generated in, and is guided by, a strong, variable magnetic field of 0.6-3.0 T. Beam diagnostics include Rogowski coils, Faraday cup/CVRs, and witness plates. Microwaves are generated through interaction with a rippled-wall cylindrical waveguide. Microwave diagnostics include a microwave spectrometer, a dispersive delay line, and an LCD witness plate to view the mode pattern of the generated power

Keywords

backward wave tubes; microwave oscillators; relativistic electron beam tubes; 0.6 to 3 T; 1 MV; 1 to 7 kA; 8.5 GHz; BWO; Faraday cup/CVRs; LCD witness plate; Rogowski coils; X-band backward-wave oscillator; annular beam; beam current; beam diagnostics; beam parameters; dispersive delay line; microwave diagnostics; microwave pulse shortening; microwave spectrometer; pulse length; relativistic electron beam propagation; rippled-wall cylindrical waveguide;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1990. IEEE Conference Record - Abstracts., 1990 IEEE International Conference on

Conference_Location

Oakland, CA, USA

Type

conf

DOI

10.1109/PLASMA.1990.110638

Filename

5725913