ELECTRON ENERGIES IN ELECTRICAL DISCHARGES EXCITED AT MICROWAVE FREQUENCIES,

Abstract

The electron energy distribution in plasmas excited at microwave frequencies were measured by the retarding potential grid technique. The electron energy distribution and the mean electron energy in discharges of fourteen different gases are given. The electron energy range was normally 10-20 eV. Abnormally high mean electron energies (< 40 eV) and densities were observed in plasmas of SO2 and H2S. The electron energy distribution fitted in all cases the Maxwellian energy distribution, except for discharges of SO2 and H2S which fitted approximately the form of Druyvestyn distribution. An explanation, based on the effect of negative ions on the ambipolar diffusion coefficient for the abnormalities observed in SO2 and H2S plasmas is proposed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0672223

Entities

People

  • J. L. Franklin
  • Stanley A. Studniarz

Organizations

  • Purdue University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abnormalities
  • Coefficients
  • Cooperation
  • Diffusion
  • Diffusion Coefficient
  • Electron Energy
  • Electrons
  • Energy
  • Frequency
  • Microwave Frequency
  • Microwaves

Fields of Study

  • Physics

Readers

  • Cardiovascular Physiology
  • Plasma Physics.
  • Regression Analysis.

Technology Areas

  • Microelectronics