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Proceedings Paper

Advanced Diagnostics for COIL and DOIL
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Paper Abstract

In this paper we discuss the application of sensitive, non-intrusive diagnostic techniques to characterize species in the flow that are critical for chemical oxygen iodine laser (COIL) devices and the electric discharge oxygen iodine laser (DOIL) concept. The key diagnostics include chemiluminescence to detect O2(a,b) and I(2P1/2) and tunable diode laser absorption measurements of I* and temperature. We have characterized variations in O and O2(a) yields with discharge power and oxygen mole fraction. We observe O2(a) yields to increase dramatically with decreasing oxygen mole fraction. We also discuss the application of a novel imaging diagnostic to obtain 2-D images of species concentrations and temperature.

Paper Details

Date Published: 20 September 2004
PDF: 7 pages
Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); doi: 10.1117/12.548814
Show Author Affiliations
Steven J. Davis, Physical Sciences Inc. (United States)
W. Terry Rawlins, Physical Sciences Inc. (United States)
Seonkyung Lee, Physical Sciences Inc. (United States)
Michelle L. Silva, Physical Sciences Inc. (United States)
William J. Kessler, Physical Sciences Inc. (United States)
Phillip A. Mulhall, Physical Sciences Inc. (United States)

Published in SPIE Proceedings Vol. 5448:
High-Power Laser Ablation V
Claude R. Phipps, Editor(s)

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