STUDY OF THERMAL ELECTRON EMISSION FROM A HOLLOW CATHODE

Abstract

The great interest in hollow oxide cathodes has been brought on by the considerable current densities of cathode emission, by the low voltages at which they may be obtained, as well as by the small effective dimensions of the electron source and the insensitivity of the cathode to ionic bombardment. However, the mechanism of its emission has not yet been sufficiently studied; visual investigation of the structure of the beam formed by a system with a hollow cathode attests to its complexity. An attempt was made to explain current anomalies of the cathode on the basis of the structural characteristics of the beam.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1963
Accession Number
AD0405695

Entities

People

  • M. B. Pytyeva
  • Ye. M. Dubinina

Organizations

  • National Air and Space Intelligence Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cathodes
  • Circuits
  • Current Density
  • Diameters
  • Electrical Circuits
  • Electron Beams
  • Electron Emission
  • Electron Flux
  • Electrons
  • Emission
  • Filaments
  • Heat Transfer
  • Integral Equations
  • Low Voltage
  • Oxide Cathodes
  • Photoexcitation
  • Space Charge

Fields of Study

  • Physics

Readers

  • Plasma Physics.
  • Theoretical Analysis.

Technology Areas

  • Microelectronics