Accession Number : ADD007807

Title :   Improved Hollow Beam Electron Source.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Shelton,Joe

Report Date : 28 Jul 1980

Pagination or Media Count : 7

Abstract : A cold field emitter is placed in special relationship to an anode device having a hole in it close to the emitter. A second electrode can be located above the hole in the anode and be a circular shape of lesser diameter than the first anode so as to shape the hollow beam being emitted by the device. (Author)

Descriptors :   *Patent applications, *Cold cathode tubes, *Emitters, Electron beams, Shape, Anodes(Electron tubes), Fabrication, Current density, Electrical loads

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE