Studies of iodine dissociation in the chemical oxygen-iodine laser

V. Rybalkin; A. Katz; K. Waichman; D. Vingurt; Z. Dahan; B. D. Barmashenko; S. Rosenwaks

doi:10.1117/12.737166

26 April 2007 Studies of iodine dissociation in the chemical oxygen-iodine laser

V. Rybalkin, A. Katz, K. Waichman, D. Vingurt, Z. Dahan, B. D. Barmashenko, S. Rosenwaks

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.

Citation Download Citation

V. Rybalkin, A. Katz, K. Waichman, D. Vingurt, Z. Dahan, B. D. Barmashenko, and 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); https://doi.org/10.1117/12.737166

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