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High-efficiency, high-energy operation of an intense electron beam initiated HF chemical laser using a mixture containing a heavy fluoride MoF/sub 6/

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.97198· OSTI ID:5657510
High-efficiency and high-energy operation of HF chemical lasers was simultaneously realized using a low pressure mixture of H/sub 2//F/sub 2//O/sub 2//MoF/sub 6/ initiated by an intense electron beam. The addition of small amounts of MoF/sub 6/ gas to the mixture of H/sub 2//F/sub 2//O/sub 2/ resulted in an increase in laser output energy and electrical and chemical efficiencies. A HF laser energy obtained from a mixture containing 17.9 Torr of MoF/sub 6/ was 3.7 kJ (136 J/l) with a pulse width of 190 ns full width at half-maximum. The corresponding electrical efficiency and chemical efficiency are 189% and 15.2%, respectively, with a low pressure (362.4 Torr) mixture of H/sub 2//F/sub 2//O/sub 2//MoF/sub 6/ = 30/242/72.5/17.9 Torr.
Research Organization:
Department of Electrical Engineering, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama-shi 223, Japan
OSTI ID:
5657510
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 49:3; ISSN APPLA
Country of Publication:
United States
Language:
English