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Proceedings Paper

Chemical oxygen-iodine laser (COIL) thermal management
Author(s): Keith A. Truesdell; Charles A. Helms; Thomas Longergan; Charles F. Wisniewski; Joseph E. Scott; Keith P. Healey
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Paper Abstract

The chemical oxygen-iodine laser (COIL) has been studied at the Phillips Laboratory since its invention in 1978. One of the most difficult challenges in COIL technology is to produce constant power for more than a few seconds; an essential feature for most applications. The key to developing a laser with these operational characteristics is management of the heat released during the production of singlet delta oxygen. Approximately 10 joules is deposited into the singlet delta oxygen generator (SOG) for every joule extracted as laser power. A recent test series demonstrated run times of 120 seconds at 9 kW by controlling the SOG reaction temperature with a flowing aqueous solution of cold hydroperoxide (BHP). This method of managing the energy released is quite effective but requires a large reservoir of cold BHP.

Paper Details

Date Published: 31 March 1995
PDF: 10 pages
Proc. SPIE 2502, Gas Flow and Chemical Lasers: Tenth International Symposium, (31 March 1995); doi: 10.1117/12.204932
Show Author Affiliations
Keith A. Truesdell, Air Force Phillips Lab. (United States)
Charles A. Helms, Air Force Phillips Lab. (United States)
Thomas Longergan, Air Force Phillips Lab. (United States)
Charles F. Wisniewski, Air Force Phillips Lab. (United States)
Joseph E. Scott, Air Force Phillips Lab. (United States)
Keith P. Healey, Logicon R&D Associates (United States)


Published in SPIE Proceedings Vol. 2502:
Gas Flow and Chemical Lasers: Tenth International Symposium
Willy L. Bohn; Helmut Huegel, Editor(s)

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