Mode competition in harmonic magnicon amplifiers

Author

Fliflet, A.W. ; Gold, S.H.

Author_Institution

Div. of Plasma Phys., Naval Res. Lab., Washington, DC, USA

fYear

1995

fDate

5-8 June 1995

Firstpage

247

Abstract

Summary form only given. A time-dependent, multimode gyrotron code has been modified to examine competition in the output cavity between the phase-synchronous operating mode and other nonsynchronous modes which interact via the conventional gyrotron interaction. Calculations have been carried out for magnicons with TM/sub 410/ and TE/sub 411/ mode output cavities and include the effect of a spread in gyro-angles in the scanning electron beam. Our results indicate that the TM/sub 410/ mode is subject to strong competition from the TM/sub 110/ mode interacting at the fundamental cyclotron harmonic, while the TE/sub 411/ mode experiences weaker competition from the TE/sub 121/ mode interacting at the second cyclotron harmonic.

Keywords

cyclotron radiation; gyrotrons; harmonic generation; microwave amplifiers; microwave tubes; cyclotron harmonics; gyrotron interaction; harmonic magnicon amplifiers; mode competition; nonsynchronous modes; output cavity; phase-synchronous modes; scanning electron beam; time-dependent multimode gyrotron code; Chirp; Cyclotrons; Electron beams; Frequency; Gyrotrons; Laboratories; Laser beams; Physics; Plasmas; Structural beams;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1995. IEEE Conference Record - Abstracts., 1995 IEEE International Conference on

Conference_Location

Madison, WI, USA

ISSN

0730-9244

Print_ISBN

0-7803-2669-5

Type

conf

DOI

10.1109/PLASMA.1995.533244

Filename

533244