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Proceedings Paper

Effect of geometry and preionization conditions on the performance of atmospheric pressure HF chemical laser
Author(s): Yehoshua Y. Kalisky; Karol Waichman; S. Kamin; D. Chuchem
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Paper Abstract

Laser performance of an electric discharge, plasma cathode preionized, atmospheric pressure HF chemical laser was investigated and geometrically optimized. The preionization electron density was measured at atmospheric pressure in helium and in a mixture of SF6 + H2 diluted by helium. The measured preionization density is ne approximately equals 6.7 X 106 - 2 X 107 cm-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electro-negative gasses. We have found improvement in laser specific energy for a diluted gas mixture of SF6 + H2 due to reduction in SF6 concentration. The effects of inter-electrode gap height and plasma cathode grid width on laser performance were also investigated and will be reported.

Paper Details

Date Published: 29 March 1996
PDF: 11 pages
Proc. SPIE 2702, Gas and Chemical Lasers, (29 March 1996); doi: 10.1117/12.236869
Show Author Affiliations
Yehoshua Y. Kalisky, Nuclear Research Ctr./Negev (Israel)
Karol Waichman, Nuclear Research Ctr./Negev (Israel)
S. Kamin, Nuclear Research Ctr./Negev (Israel)
D. Chuchem, Nuclear Research Ctr./Negev (Israel)

Published in SPIE Proceedings Vol. 2702:
Gas and Chemical Lasers
Robert C. Sze, Editor(s)

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