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Proceedings Paper

Modeling of the gain, temperature, and iodine dissociation fraction in a supersonic chemical oxygen-iodine laser
Author(s): Boris D. Barmashenko; Esther Bruins; Dov Furman; Victor Rybalkin; Salman Rosenwaks
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Paper Abstract

We report on a simple one-dimensional model developed for the fluid dynamics and chemical kinetics in the chemical oxygen iodine laser (COIL). Two different I2 dissociation mechanisms are tested against the performance of a COIL device in our laboratory. The two dissociation mechanisms chosen are the celebrated mechanism of Heidner and the newly suggested mechanism of Heaven. The gain calculated using Heaven's dissociation mechanism is much lower than the measured one. Employing Heidner's mechanism, a surprisingly good agreement is obtained between the measured and calculated gain and temperature over a wide range of the flow parameters. Other predictions of the model (larger mixing efficiency and higher temperature with a leak opened downstream of the resonator and gain decrease along the flow) are also in agreement with the experimental observations.

Paper Details

Date Published: 6 May 2002
PDF: 12 pages
Proc. SPIE 4631, Gas and Chemical Lasers and Intense Beam Applications III, (6 May 2002); doi: 10.1117/12.465794
Show Author Affiliations
Boris D. Barmashenko, Ben-Gurion Univ. of the Negev (Israel)
Esther Bruins, Ben-Gurion Univ. of the Negev (Israel)
Dov Furman, Ben-Gurion Univ. of the Negev (Israel)
Victor Rybalkin, Ben-Gurion Univ. of the Negev (Israel)
Salman Rosenwaks, Ben-Gurion Univ. of the Negev (Israel)

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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