Development of a thermionic magnicon amplifier at 11.4 GHz

Author

Gold, Steven H. ; Hafizi, B. ; Fliflet, T.A.W. ; Kinkead, A.K. ; Nexhevonko, O.A. ; Yakovlevo, V.P. ; Hirschfield, J.L. ; True, R.

Author_Institution

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

fYear

1997

fDate

19-22 May 1997

Firstpage

222

Lastpage

223

Abstract

Summary form only given. A new 11.4 GHz rep-rated thermionic magnicon experiment is being assembled, using an advanced ultrahigh-convergence electron gun driven by a 10 Hz, 1.5 microsecond modulator top to produce a 500 kV, 210 A, 2-mm diameter electron beam. The magnicon circuit has been optimized for minimum surface RF fields and maximum efficiency, and will be engineered for high temperature bakeout and high vacuum operation. This experiment should begin operation in the summer of 1997. The predicted power is 60 MW at /spl sim/60% efficiency.

Keywords

electron beams; electron guns; microwave generation; microwave power amplifiers; microwave tubes; thermionic tubes; 1.5 ms; 10 Hz; 11.4 GHz; 2 mm; 210 A; 500 kV; 60 MW; 60 percent; advanced ultrahigh-convergence electron gun; efficiency; electron beam; high temperature bakeout; high vacuum operation; magnicon circuit; maximum efficiency; microsecond modulator top; minimum surface RF fields; rep-rated thermionic magnicon experiment; thermionic magnicon amplifier; Cathodes; Circuits; Electron beams; Electron traps; Gold; Integral equations; Masers; Plasma accelerators; Radiofrequency amplifiers; US Department of Energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on

Conference_Location

San Diego, CA, USA

ISSN

0730-9244

Print_ISBN

0-7803-3990-8

Type

conf

DOI

10.1109/PLASMA.1997.604914

Filename

604914