Accession Number : ADD001640

Title :   Method and Apparatus for Focusing an Electron Beam.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Bennett,Willard H

Report Date : 21 Oct 1975

Pagination or Media Count : 3

Abstract : The patent relates to a method and apparatus for focusing and projecting a beam from the end of a cathode into an anode of an electron discharge device. A multiplicity of dielectric members are arranged approximately symmetrically around the axis of symmetry. Each of the dielectric members are held at one end in the anode. The initial discharge from the cathode which spreads out radially striking the multiplicity of dielectric members thus supply ions in all directions from the dielectric members, some of which supplies ions near the axis of symmetry for the magnetic self-focusing of the electron beam.

Descriptors :   *Electron beams, *Focusing, *Patents, Dielectrics, Space charge, Neutralization, Magnetic pinch

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE