Title :
Project of electron gun for microwave devices with thermally expanded graphite cathodes
Author :
Akimov, P.L. ; Kuzmich, C.V. ; Melnychuk, V.A. ; Nikitin, A.P. ; Chudin, V.G. ; Sechin, H.E. ; Chadaev, N.N. ; Bohoslovskaya, A.B.
Author_Institution :
FSUE “R&PE “Toriy”, Moscow, Russia
fDate :
June 30 2014-July 4 2014
Abstract :
Current density of 0.3 to 0.5 A/cm2 and higher obtained when testing of thermally expanded graphite cathodes. Simulation of the magnetron injection type electron gun with blade-type cathodes for microwave device showed, that using of the cathodes lateral structure reduces the impact of ion bombardment on the surface areas of the emitting electrons. Patent for utility model received.
Keywords :
cathodes; current density; electron guns; graphite; microwave devices; C; blade-type cathodes; cathodes lateral structure; current density; electron gun; emitting electrons; ion bombardment; magnetron injection; microwave devices; thermally expanded graphite cathodes; utility model; Blades; Cathodes; Degradation; Electron tubes; Graphite; Iron; Thermal expansion;
Conference_Titel :
Vacuum Electron Sources Conference (IVESC), 2014 Tenth International
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4799-5770-5
DOI :
10.1109/IVESC.2014.6891930
