Investigation of Sheath Phenomena in Electronegative Glow Discharges.

Abstract

Investigates sheath phenomena in electronegative glow discharges. Calculations have been performed for He/HC1, Ar/HC1, and Xe/HC1 mixtures to model the cathode fall region of a gas discharge. The electric field, Townsend ionization and attachment coefficients, as well as positive ion, negative ion, and electron densities were were calculated as a function of distance. Attachment was found to increase the voltage and length of the cathode fall. Efficient ionization of the electronegative gas, HC1, which has a low ionization threshold, resulted in an overall contraction of the cathode fall in He mixtures. Keywords: Helium; Hydrogen Chloride; Argon; Xenon; Glow Discharges.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1987
Accession Number
ADA182422

Entities

People

  • Gary L. Duke

Organizations

  • Air Command and Staff College

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Boltzmann Equation
  • Charged Particles
  • Collisions
  • Current Density
  • Distribution Functions
  • Electric Discharges
  • Electric Fields
  • Electron Density
  • Electron Energy
  • Electrons
  • Energy
  • Equations
  • Gas Discharges
  • Glow Discharges
  • Ion Density
  • Space Charge

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Plasma Physics / Magnetohydrodynamics
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Microelectronics