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Proceedings Paper

Studies of iodine dissociation in the chemical oxygen-iodine laser
Author(s): V. Rybalkin; A. Katz; K. Waichman; D. Vingurt; Z. Dahan; B. D. Barmashenko; S. Rosenwaks
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Paper Abstract

The dissociation of I2 molecules at the optical axis of a supersonic chemical oxygen-iodine laser (COIL) was studied experimentally as a function of I2 flow rate. The measurements revealed that the number of consumed O2(1&Dgr;) molecules per dissociated I2 molecule depends on the experimental conditions: it is 4.2 ± 0.4 for typical conditions and I2 densities applied for the operation of the COIL, but increases at lower I2 densities. In addition, a new method for dissociating I2 prior to its mixing with O2(1&Dgr;) and thus reducing the loss of O2(1&Dgr;) is reported. The method is based on applying corona/glow electrical discharge in the transonic section of the secondary flow in the COIL supersonic nozzle. 1.7% of I2 is dissociated by the discharge resulting in 70% power enhancement at rather high I2/O2 ratio, 1.6%, close to the optimal value (~ 2.5%) for operation of COILs with supersonic mixing.

Paper Details

Date Published: 26 April 2007
PDF: 8 pages
Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 63460A (26 April 2007); doi: 10.1117/12.737166
Show Author Affiliations
V. Rybalkin, Ben-Gurion Univ. of the Negev (Israel)
A. Katz, Ben-Gurion Univ. of the Negev (Israel)
K. Waichman, Ben-Gurion Univ. of the Negev (Israel)
D. Vingurt, Ben-Gurion Univ. of the Negev (Israel)
Z. Dahan, Ben-Gurion Univ. of the Negev (Israel)
B. D. Barmashenko, Ben-Gurion Univ. of the Negev (Israel)
S. Rosenwaks, Ben-Gurion Univ. of the Negev (Israel)


Published in SPIE Proceedings Vol. 6346:
XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Dieter Schuöcker, Editor(s)

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