Experimental Studies of Photoionization Processes in Air

Abstract

An experimental study is described whose objectives is to assess the role of NO in the nonequilibrium vacuum ultraviolet (VUV) radiation from shockheated air. The experiment utilizes a splitter-plate shock tube technique wherein the VUV radiation behind a reflected shock is used as a light source to measure the absorption by gases processed only by the incident shock wave. In addition, nonequilibrium radiation profiles behind strong incident shock waves are also measured to aid in the identification of the relevant excitation processes. The report describes the apparatus, discusses the results of calculations needed to establish testing parameters, and presents the experimental measurements to date. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1971
Accession Number
AD0743121

Entities

People

  • Walter H. Wurster

Organizations

  • Calspan

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Absorption
  • Chemical Reactions
  • Electromagnetic Radiation
  • Light Sources
  • Measurement
  • Military Research
  • Molecules
  • Photoionization
  • Radiation
  • Shock
  • Shock Tests
  • Shock Tubes
  • Shock Waves
  • Spectrometers
  • Tubes
  • Ultraviolet Radiation
  • Vacuum Ultraviolet Radiation

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Molecular Photonics/Laser Physics
  • Systems Analysis and Design