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Proceedings Paper

Quantitative determination of oxygen yield in a chemical oxygen-iodine laser
Author(s): Kip R. Kendrick; Charles A. Helms; Brian Quillen; R. J. Copland
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Paper Abstract

With the advent of the Airborne Laser program, the emphasis of chemical oxygen-iodine laser (COIL) research has shifted toward improving the overall efficiency. A key component of COIL is the singlet-oxygen generator (SOG). To asses the efficiency of the SOG an accurate method of determining the yield of O2((alpha) 1(Delta) g),[O2((alpha) 1(Delta) g)]/[O2(total)] where [O2(total)]equals[O2((alpha) 1(Delta) g)]+[O2(X3(Sigma) g-)], has been developed. Absorption measurements of ground-state oxygen utilizing the magnetic-dipole transition, O2(X3(Sigma) g-) at 763 nm, have been obtained using a diode laser in conjunction with a multiple-pass Herriot-cell on a 10 kW class supersonic SOIL (RADICL). When RADICL is configured with a 0.35' throat, 15' diskpack, and a medium volume transition duct, with a diluent ratio (He:O2) of 3:1, the yield of O2((alpha) 1(Delta) g) in the diagnostic duct is 0.41 +/- 0.02.

Paper Details

Date Published: 12 May 1998
PDF: 5 pages
Proc. SPIE 3268, Gas and Chemical Lasers and Intense Beam Applications, (12 May 1998); doi: 10.1117/12.308058
Show Author Affiliations
Kip R. Kendrick, Air Force Research Lab. (United States)
Charles A. Helms, Air Force Research Lab. (United States)
Brian Quillen, Air Force Research Lab. (United States)
R. J. Copland, Logicon R&D Associates (United States)

Published in SPIE Proceedings Vol. 3268:
Gas and Chemical Lasers and Intense Beam Applications
Ernest A. Dorko; Jeffrey L. Moler, Editor(s)

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