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Proceedings Paper

Recent results in the development of a chemical way of atomic iodine generation for a COIL
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Paper Abstract

The results of theoretical and experimental investigation of gas phase chemical generation of atomic iodine, I(2P3/2), for stimulated emission in chemical oxygen-iodine laser (COIL) are presented. The method of I atoms generation employs a principal reaction X+HI implies I(2P3/2)+HX, where X equals F or Cl. A computational modeling was based on the 1D flow development exploring the chemical processes within the reaction systems, and was aimed at the theoretical understanding of the two complex reaction systems and finding out which is better applicable for conditions in COIL. The results of modeling were further used for a design of the device and conditions during the experimental investigation, and for an interpretation of the experimental results. The experimental work has been done, for the present, on the atomic iodine generation via Cl atoms. A high yield of atomic iodine of 70% to 100% (related to the initial HI flow rate) was attained in a flow of nitrogen. Gain was observed in preliminary experiments on the chemical generation of atomic iodine in a flow of singlet oxygen.

Paper Details

Date Published: 13 September 2002
PDF: 13 pages
Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002); doi: 10.1117/12.482074
Show Author Affiliations
Jarmila Kodymova, Institute of Physics (Czech Republic)
Otomar Spalek, Institute of Physics (Czech Republic) and Institute of Organic Chemistry (Czech Republic)
Vit Jirasek, Institute of Physics (Czech Republic) and Institute of Organic Chemistry (Czech Republic)
Miroslav Censky, Institute of Physics (Czech Republic)
Gordon D. Hager, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 4760:
High-Power Laser Ablation IV
Claude R. Phipps, Editor(s)

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