State-to-State Reactive and Collisional Dynamics of Atmospheric Species.
Abstract
The AFOSR/AASERT research efforts over the past three years (12/93-9/96) have achieved the following goals. (1) We have now completed state-to-state scattering measurements for CH4, H2O and HF with rare gas (Ar, Ne and He) collision partners, based on direct infrared absorption in crossed molecular beams. (2) Hot atom state-to-state scattering of Cl with HCl has been studied using high resolution Dopplerimetric techniques to obtain both differential and total state-to-state cross sections. (3) The theoretical basis for extracting O2((1)delta) radiative rates from direct absorption studies has been reanalyzed, and which corrects a nearly 2 fold error between inferred and literature values for the O2((1)delta) - O2((3)sigma) radiative lifetime. (4) Rotational alignment of CO2 by collisions with He in supersonic beams have been studied. (5) Nascent quantum state distributions for CO2 subliming from thin molecular films have been measured. (6) Slit discharge techniques for generating high radical and molecular ion densities have been developed for hyperthermal beam sources of reactive species.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1996
- Accession Number
- ADA316028
Entities
People
- David J. Nesbitt
Organizations
- University of Colorado Boulder