Laser Studies of Gas Phase Radical Reaction.

Abstract

Preliminary Lithium Fluoride (LIF) studies of CF are now almost complete. High quality spectra have been obtained, rotational constants have been refined, and lifetime studies are nearing completion. Infrared emission from the reaction 0 + CHF = products has been observed, although the weakness of the signal has prevented wavelength resolved measurements through a monochromator from being carried out. The CHF radical was formed by pulsed laser irradiation, and the kinetic behavior of the total emission has been studied as a function of both oxygen atom and CH2F2 radical precursor concentrations. It appears that the relatively high precursor pressures needed to observe emission are complicating the reaction scheme expected from previous studies of the vacuum uv emission accompanying this reaction. We are starting experiments using a range of ir filters in order to identify the emitting species.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1986
Accession Number
ADA193688

Entities

People

  • G. Hancock

Organizations

  • University of Oxford

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Chemical Reactions
  • Chemistry
  • Contracts
  • Detection
  • Emission
  • Fluorescence
  • Kinetics
  • Laser Induced Fluorescence
  • Lasers
  • Measurement
  • Optical Materials
  • Physical Chemistry
  • Precursors
  • Pulsed Lasers
  • Quantum States
  • Students

Fields of Study

  • Physics

Readers

  • Molecular Photonics/Laser Physics
  • Systems Analysis and Design

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers