Method of Making a Thermionic Field Emitter Cathode.

Abstract

The face of a cathode surface is machined to provide a spiral surface finish with microscopic sharp symmetrical protrusions. The cathode gives enhanced emission due to field emission generated at the sharp symmetrical protrusions and due to the increased surface area.

Document Details

Document Type
Technical Report
Publication Date
Oct 10, 1986
Accession Number
ADD012550

Entities

People

  • Bernard Smith
  • Louis E. Branovich

Organizations

  • United States Army

Tags

DTIC Thesaurus Topics

  • Emission
  • Emitters
  • Field Emission

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Plasma Physics / Magnetohydrodynamics
  • Semiconductor Device Technology