Title :
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
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;
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
DOI :
10.1109/IVEC.2014.6857545
