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Proceedings Paper

Mechanism and kinetics of iodine dissociation in COIL
Author(s): Michael C. Heaven; Anatoly V. Komissarov; Vasily Goncharov
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Paper Abstract

Dissociation of I2 by O2(a1D), with subsequent excitation of I*, was first observed by Arnold et al.1 in 1966. This key discovery led to the eventual development of the chemical oxygen iodine laser (COIL). The mechanism by which I2 is dissociated was not determined by Arnold et al.1 and has remained elusive, despite many experimental attempts to unravel this question. Although the details are not known, it is apparent that a complex interplay between vibrationally and electronically excited states of I2 is involved. Vibrationally excited states of O2 have also been implicated. Characterization of the dissociation process is an important issue for COIL as the efficiency is impacted by the energy cost of dissociating the iodine. In this paper we provide a historical summary of work on the dissociation mechanism, and summarize the current understanding of the problem.

Paper Details

Date Published: 6 May 2002
PDF: 10 pages
Proc. SPIE 4631, Gas and Chemical Lasers and Intense Beam Applications III, (6 May 2002); doi: 10.1117/12.465773
Show Author Affiliations
Michael C. Heaven, Emory Univ. (United States)
Anatoly V. Komissarov, Emory Univ. (United States)
Vasily Goncharov, Emory Univ. (United States)

Published in SPIE Proceedings Vol. 4631:
Gas and Chemical Lasers and Intense Beam Applications III
Steven J. Davis; Michael C. Heaven, Editor(s)

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