Abstract
The results of theoretical and experimental investigation of gas phase chemical generation of atomic iodine, I(<SUP>2</SUP>P<SUB>3/2</SUB>), 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(<SUP>2</SUP>P<SUB>3/2</SUB>)+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.
Published Version
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