Date of Award

5-1991

Document Type

Thesis

Degree Name

Master of Science

Department

Department of Engineering Physics

First Advisor

Glen P. Perram, PhD

Abstract

This study investigates the rotational energy transfer processes of optically excited bromine molecules in the presence of several collision partners. Resolved laser induced fluorescence spectra of collisionally populated rotational states were analyzed by means of Stern Volmer analysis. Total rotational removal rate coefficients and state-to-state rotational removal rate coefficients for the v'=11,J'=35 level of Br2(B) were obtained for collisions with Br2(X), He, Ar and Xe. Rotational removal rate coefficients were also obtained for the v'11, J'=26 and 47; v'=14, J'=36 states of Br2(B) with collisions with Ar. Total rotational removal rate for Br2 self quenching found to be 3.98+/-0.2x10-10 (cm3/Molec-Sec). Rate coefficients were scaled with respect to reduced mass of collision system and in accordance with exponential energy gap scaling law. Energy gap scaling law fit data well. Rotational removal rates displayed behavior to increase with increase in v' and J' of optically excited parent state.

AFIT Designator

AFIT-GEP-ENP-91J-1

DTIC Accession Number

ADA241987

Download

Share

COinS