Accession Number : ADA140772

Title :   Collisional Energy Transfer in Highly Vibrationally Excited Molecules.

Descriptive Note : Summary rept. Jun 83-May 84,


Personal Author(s) : Crim,F F

PDF Url : ADA140772

Report Date : 03 Apr 1984

Pagination or Media Count : 7

Abstract : Overtone vibration-laser double resonance measurements have provided new data on vibrational and rotational relaxation in HF(v = 2). These experiments determine the magnitudes of the total vibrational relaxation rate constants for HF(v = 1 and 2) as well as their temperature dependences. Detailed analysis yields the variation of the branching between competing V-V and V-TR pathways. Rotational relaxation data come from these measurements as well. The temporal evolution of individual rotational states observed in the double resonance studies provides level-to-level energy transfer rate constants when analyzed using an iterative fitting scheme which incorporates scaling relations among the rate constants. (Author)

Descriptors :   *Molecular vibration, *Molecular rotation, *Energy transfer, *Hydrogen fluoride lasers, Collisions, Excitation, Laser beams, Resonance, Measurement, Reaction kinetics, Constants, Temperature, Molecular energy levels, Relaxation, Hydrogen fluoride, Deuterium

Subject Categories : Lasers and Masers
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE