Deexcitation of Metastables at Plasma Boundaries.

Abstract

Wall deexcitation of N2 (v=1) was studied on a variety of different surfaces, using 4880 A laser radiation, the authors used the intensity of the anti-Stokes Raman scattering at 4382 A to monitor the N2 (v=1) concentrations. The two-dimensional diffusion equation with Poiseuille flow was solved to interpret the results. The lowest values of the deactivation coefficient were recorded for quartz and Pyrex after 24 hours of exposure to the microwave afterglow. The results allow some conclusions to be made concerning the mechanism of vibrational deexcitation on walls. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1973
Accession Number
AD0776077

Entities

People

  • Graham Black
  • Henry Wise
  • Robert Sharpless
  • Samuel Schechter

Organizations

  • SRI International

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Afterglows
  • Boundaries
  • Coefficients
  • Diffusion
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Equations
  • Flow
  • Intensity
  • Microwaves
  • Poiseuille Flow
  • Radiation
  • Raman Scattering
  • Scattering
  • Two Dimensional

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Molecular Photonics/Laser Physics
  • Thermal Physics or Thermal Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers