Excited-State Energetics and Dynamics of Large Molecules, Complexes and Clusters.

Abstract

New techniques for spectroscopy in supersonic expansions and in the development of specific supersonic sources were developed. Vacuum Ultraviolet Absorption Spectroscopy in Supersonic Expansions. We have combined the techniques of vacuum ultraviolet (VUV) spectroscopy together with planar supersonic jets, which allows for the interrogation of absorption spectra of large molecules cooled in supersonic expansions in the near VUV region. Development of Conical Nozzles for Supersonic Jets. Conical nozzles (nozzle opening angle theta = 30, and nozzle diameter D = 0.3 mm) were constructed and used in conjunction with a magnetic pulsed valve. The use of conical nozzles considerably enhances clustering in supersonic expansions, facilitating studies of large van der Waals complexes and clusters.

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Document Details

Document Type
Technical Report
Publication Date
Oct 30, 1986
Accession Number
ADA192470

Entities

People

  • Joshua Jortner
  • Uzi Even

Organizations

  • Tel Aviv University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Aromatic Hydrocarbons
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Conical Nozzles
  • Dye Lasers
  • Dynamics
  • Electrons
  • Laser Dyes
  • Molecules
  • Organic Chemistry
  • Quantum Yields
  • Spectra
  • Spectroscopy
  • Subatomic Particles

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Materials Science and Engineering.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flight