Multibeam electron gun with gated carbon nanotube cathode

Author

Bushuev, Nikolai ; Grigoriev, Yuri ; Bourtsev, Anton ; Schalaev, Pavel ; Tarasov, Evgeny

Author_Institution

Fed. State Unitary Enterprise NPP Almaz, Saratov, Russia

fYear

2012

fDate

24-26 April 2012

Firstpage

559

Lastpage

560

Abstract

In this paper we present the method to produce the multibeam field-emission structure with cylindrical projections made from glassy carbon and coated with thin film of carbon nanotubes. The design of the 7-beam cathode-gate unit consisting of a flat field emission cathode with metal film gate on insulating substrate and 19-beam field emission electron gun with beam compression is performed. It is shown experimentally on a model 7-beam gun that achieved the level of current density of 2,8 A/cm², for 19-beam gun - 12 A/cm² on cathode.

Keywords

carbon nanotubes; cathodes; electron guns; thin film devices; 19-beam field emission electron gun; 19-beam gun; 7-beam cathode-gate unit; 7-beam gun; C; carbon nanotube thin film; cylindrical projections; flat field emission cathode; gated carbon nanotube cathode; glassy carbon; insulating substrate; metal film gate; multibeam electron gun; multibeam field-emission structure; Carbon dioxide; Carbon nanotubes; Cathodes; Electron beams; Films; Logic gates; Metals; CVD; beam compression; carbon nanotube; electron gun; field emission cathode; gate; glassy carbon;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4673-0188-6

Electronic_ISBN

978-1-4673-0187-9

Type

conf

DOI

10.1109/IVEC.2012.6262277

Filename

6262277