COIL chemical kinetics package revisited: a re-analysis of molecular iodine dissociation rate data

John S. Paschkewitz; Michael C. Heaven

doi:10.1117/12.384284

4 May 2000 COIL chemical kinetics package revisited: a re-analysis of molecular iodine dissociation rate data

John S. Paschkewitz, Michael C. Heaven

Proceedings Volume 3931, Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications; (2000) https://doi.org/10.1117/12.384284
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States

Abstract

New fits to the molecular iodine dissociation rate data of Heidner et al. Were obtained with the goals of achieving a better overall representation of the experimental data and determining a set of rate constants compatible with the assumption that the dissociation intermediate I₂dagger is vibrationally excited I₂. Improved rate constants were obtained that are significantly different from those used in current computational models of COIL systems. While the new rate constants provided a better representation of the experimental dat, troubling discrepancies remain. New reactions involving electronically excited iodine (I₂*) were then added to the model in an attempt to resolve these discrepancies. Preliminary calculations indicate that I₂* kinetics provide only a minor path to dissociation and that these model deficiencies will not be resolved by adding electronically excited iodine channels.

Citation Download Citation

John S. Paschkewitz and Michael C. Heaven "COIL chemical kinetics package revisited: a re-analysis of molecular iodine dissociation rate data", Proc. SPIE 3931, Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications, (4 May 2000); https://doi.org/10.1117/12.384284

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