Energy Dependence of the Quenching Cross Section for the Reaction of Metastable Argon and Water
Abstract
This work examines the energy dependence of the quenching cross section for the reaction of metastible argon with ground state water. A molecular beam and scattering gas apparatus is employed. The energy dependence of the quenching cross section is determined by observing the intensity of the fluorescence from the reaction product vs. the scattering gas pressure for a series of metastable beam energies. The method for determining the quenching cross section was adapted from a 1975 paper by Dickson and Zare, and is the first time this procedure has been used to measure the energy dependence of the quenching of metastable species by ground state molecules. The uncorrected quenching cross section and the deconvoluted cross section were determined to vary with energy as E-0.83 and E-0.50, respectively. The quenching process for this system was determined to be governed by long range attractive forces. Theses.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1988
- Accession Number
- ADA197222
Entities
People
- Stephen W. Novicki
Organizations
- Air Force Institute of Technology