Accession Number : ADA140853

Title :   Deactivation of Higher Vibrational Levels of HF by F Atoms.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA AEROPHYSICS LAB

Personal Author(s) : Bott,J F

PDF Url : ADA140853

Report Date : 23 Apr 1984

Pagination or Media Count : 18

Abstract : The vibrational relaxation times of HF(v = 3) and HF(V = 1) in the presence of F atoms have been measured in a slow-flow fluorescence cell at room temperature. The HF is pumped to vibrational levels v = 1, 2, and 3 by a pulsed HF laser. It was found that F atoms deactivate HF(V = 3) faster than they do HF(v = 1) by a factor of 20.8 + or - 2.0. This dependence of the deactivation rate coefficient on v agrees with that determined for the exothermic V-V or V-R,T deactivation of HF(V = 1 to 3) by N2, O2, D2 and HC1. (Author)

Descriptors :   *Hydrogen fluoride lasers, *Hydrogen fluoride, *Molecular vibration, *Molecular energy levels, *Relaxation time, Fluorine, Atoms, Deactivation, Measurement, Laser induced fluorescence, Cells, Laser pumping, Pulsed lasers, Rates, Coefficients, Exothermic reactions, Photomultiplier tubes

Subject Categories : Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE