26 April 2007 Studies of iodine dissociation in the chemical oxygen-iodine laser
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Proceedings Volume 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 63460A (2007) https://doi.org/10.1117/12.737166
Event: XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2006, Gmunden, Austria
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.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
V. Rybalkin, V. Rybalkin, A. Katz, A. Katz, K. Waichman, K. Waichman, D. Vingurt, D. Vingurt, Z. Dahan, Z. Dahan, B. D. Barmashenko, B. D. Barmashenko, S. Rosenwaks, S. Rosenwaks, } "Studies of iodine dissociation in the chemical oxygen-iodine laser", Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 63460A (26 April 2007); doi: 10.1117/12.737166; https://doi.org/10.1117/12.737166
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