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Kinetics modeling and interpretation of experimental results for XeF. Annual report, December 1985--November 1986 [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 1986.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
111 pages : digital, PDF file
Additional Creators:
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
In this report the author presents a detailed discussion of a computer model of the electron beam pumped XeF laser which was developed for Los Alamos National Laboratory during FY86. In its present form, it should provide useful modeling and scaling of XeF laser experiments currently of interest. Additional modifications will be required for long pulse (t{sub P}>5μsec) simulations. The model includes all of the important energy transport processes which contribute to the formation and quenching of XeF in the B-state (upper laser level), X-state (lower laser level), C-state (which mixes with the B-state as a loss mechanism), and the unbound (repulsive) A-state to which the C-state decays. The gain of the B to X transition is resolved for the three most important laser (vibrational) lines: (0-3) at 353 nm, (0-2) and (1-4) at 351 nm. This report describes the kinetics model and computer code for electron beam pumped XeF lasers which use gas mixtures composed of argon (the buffer), xenon, and fluorine. The temperatures, energy flow, and chemistry (plasma and neutral) are calculated in a self-consistent manner; balances of energy, matter, and charge are tracked by the code and output with each print cycle. The model includes the time history of all of the important absorbers: Ar₂⁺, Xe₂⁺, Ar{sup *} and Xe{sup *} (s and p states), F₂, F{sup −}, and Xe₂F{sup *}. Energy extraction in the form of lasing is computed using a modified Rigrod analysis which treats multiline lasing. This extraction model assumes a spatially uniform laser flux and is therefore a one dimensional (in time) treatment. The more general extraction model which treats non-uniform spatial effects (laser flux and pumping by a non-uniform electron beam) is being developed, and will be integrated with excimer model in the FY87 reporting period. The computer code was written in FORTRAN77 on a DEC MICROVAX II which uses the VAX/VMS operating system.
Report Numbers:
E 1.99:la-sub--94-58
la-sub--94-58
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
12/31/1986.
"la-sub--94-58"
"DE94009070"
Salesky, E.T.
Type of Report and Period Covered Note:
Annual; 01/01/1985 - 12/31/1986
Funding Information:
W-7405-ENG-36
View MARC record | catkey: 14112369