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Proceedings Paper

Atomic iodine production by decomposing CF3I in RF discharge
Author(s): Guofu Li; Fengting Sang; Liping Duo
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Paper Abstract

By means of radio frequency(RF) capacitively coupled discharge, pure CF3I and the mixture of CF3I and various inert gases were used to produce iodine atom for a chemical oxygen-iodine laser. The dependences of atomic iodine concentration on gas pressure and gas flow rate were studied. In the case of RF frequency of 13.56MHz, output power of 500W, gas pressure of 3.5Torr, pure CF3I without any carrier gas ,and CF3I flow rate of 1.2SLM, atomic iodine concentration of 4.0×1014 cm-3 was achieved. The concentration of atomic iodine was of the order of 0.4×1014cm-3 at p=15Torr in the case of the mixture of CF3I and some inert gases, which was lower by one order of magnitude than that of pure CF3I. A kinetics modeling was carried out and demonstrated that CF3 played dominant role in the loss mechanism of atomic iodine.

Paper Details

Date Published: 26 April 2007
PDF: 6 pages
Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 63462H (26 April 2007); doi: 10.1117/12.739093
Show Author Affiliations
Guofu Li, Dalian Institute of Chemical Physics (China)
Fengting Sang, Dalian Institute of Chemical Physics (China)
Liping Duo, Dalian Institute of Chemical Physics (China)


Published in SPIE Proceedings Vol. 6346:
XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers

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