Vibrational relaxation and electronic quenching-rate coefficients for BiF (A0+,v1) by SF6
Abstract
The kinetic data base is extended for the A-state of BiF to include SF6 as a collision partner. By applying a four-level finite difference fitting routine to time-resolved fluorescence traces from v' = 0-3, one obtains rate coefficients for electronic quenching, as well as for vibrational relaxation within the A-state manifold. As was the case for previous results with He and Ar, electronic quenching is slow in comparison to radiative decay. Vibrational relaxation does not show a simple v' dependence, but rather, for the levels examined, increases markedly for higher v'. Results confirm the suitability of SF6 as a bulk diluent in the proposed NF/BiF chemical laser system.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- August 1988
- Bibcode:
- 1988STIN...8916144H
- Keywords:
-
- Bismuth Compounds;
- Chemical Lasers;
- Coefficients;
- Molecular Relaxation;
- Quenching (Atomic Physics);
- Rates (Per Time);
- Sulfur Fluorides;
- Accuracy;
- Comparison;
- Data Bases;
- Fluorescence;
- Kinetics;
- Radioactive Decay;
- Lasers and Masers