Vibrational Relaxation Measurements by a Combined Shock Tube-Laser Induced Fluorescence Technique.

Abstract

Vibrational relaxation measurements in HF and DF have been obtained at intermediate temperatures by combining the laser-induced fluorescence technique with shock compression heating in a shock tube. The combination of the two techniques has several advantages: it permits measurements over a wide range of temperatures, and eliminates problems of wall reactions and leaky cells at high temperatures. This method was used to obtain HF and DF vibrational relaxation data in the presence of various chaperon molecules at temperatures from 460 to above 1000K and at room temperature. Data for the V-V energy transfer from DF to various diatomics were obtained from 295 to 700K and above. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Aug 25, 1973
Accession Number
AD0766257

Entities

People

  • Jerry F. Bott
  • Norman Cohen

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Compression
  • Energy
  • Energy Transfer
  • Fluorescence
  • High Temperature
  • Laser Induced Fluorescence
  • Lasers
  • Measurement
  • Molecules
  • Shock Tubes
  • Tubes
  • Vibrational Relaxation

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Molecular Photonics/Laser Physics
  • Thermal Physics or Thermal Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers