Forming of high current density sheet electron beams for a sub-THZ TWT vacuum aamplifiers

Author

Bushuev, N.A. ; Burtsev, A.A. ; Navrotsky, I.A. ; Sahajee, Georgy V. ; Grigoriev, Yuri A.

Author_Institution

JSC "NPP "Almaz", Saratov, Russia

fYear

2014

fDate

22-24 April 2014

Firstpage

171

Lastpage

172

Abstract

In this paper we present the computer analysis of magnetic focusing sheet electron beam with low perveance in the electron-optical systems with an electron gun based on thermionic cathode with a current density of 100 A/cm² at the distance of tunnel 25 mm. The results of experimental study in the diode mode of impregnated thermionic cathode with linear dimensions 0,1 × 0,7 mm have shown the feasibility of using this cathode in sub-THz vacuum amplifiers.

Keywords

current density; electron guns; electronic engineering computing; thermionic cathodes; travelling wave amplifiers; travelling wave tubes; vacuum tubes; computer analysis; diode mode; distance 25 mm; electron gun; electron-optical systems; high current density sheet electron beam forming; impregnated thermionic cathode; magnetic focusing sheet electron beam; sub-THZ TWT vacuum amplifiers; Anodes; Cathodes; Current density; Earth Observing System; Electron beams; Electron optics; Magnetic fields; electron gun; impregnated thermionic cathode; perveance; sheet beam; terahertz; vacuum amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, IEEE International

Conference_Location

Monterey, CA

Type

conf

DOI

10.1109/IVEC.2014.6857545

Filename

6857545