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Proceedings Paper

Chemical oxygen-iodine laser investigations in Israel
Author(s): Boris D. Barmashenko; Dov Furman; Salman Rosenwaks
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Paper Abstract

We report on diagnostic measurements in a small scale supersonic chemical oxygen iodine laser (COIL) with transonic mixing. Using diode laser based diagnostics we measured the O2(1(Delta) ) yield and water vapor fraction at the exit of a jet type singlet oxygen generator (JSOG) and the gain in the resonator. In addition the chlorine utilization and gas temperature at the generator exit were measured. For conditions corresponding to the maximum chemical efficiency of the supersonic COIL energized by the JSOG the O2(1(Delta) ) yield, water vapor fraction, chlorine utilization and temperature at the generator exit are 0.65, 0.08, 0.92 and 30 C. Small signal gain and temperature at the resonant optical axis are 0.25%/cm and 280 K, respectively. Dependence of the yield on the generator pressure and variation of the temperature along the flow in the diagnostic cell are consistent with rate constant of the O2(1(Delta) ) energy pooling reaction of 2.7 X 10-17 cm3s-1.

Paper Details

Date Published: 22 December 1998
PDF: 8 pages
Proc. SPIE 3574, XII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (22 December 1998); doi: 10.1117/12.334442
Show Author Affiliations
Boris D. Barmashenko, Ben-Gurion Univ. of the Negev (Israel)
Dov Furman, Ben-Gurion Univ. of the Negev (Israel)
Salman Rosenwaks, Ben-Gurion Univ. of the Negev (Israel)


Published in SPIE Proceedings Vol. 3574:
XII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Anatoly S. Boreisho; Gennady A. Baranov, Editor(s)

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