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24 March 2009 Iodine atom production rates by electron impact versus post discharge reactions for pulsed COIL
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Abstract
Pulsed discharge is effective means to achieve high-peak lasing in COIL. Numerical model is developed for simulation of pulsed discharge in gas stream from the singlet oxygen generator mixed with CF3I. The model comprises a system of kinetic equations for neutral and charged species, electric circuit equation, and gas thermal balance equation. Sources of iodine atoms under discharge and post-discharge conditions are analyzed. The dominant source in the discharge is electron-impact dissociation of CF3I molecules. In post-discharge phase chemical reactions are identified giving notable input into I production. Deformation of laser pulse waveform observed experimentally is explained by influence of these reactions.
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A. P. Napartovich, I. V. Kochetov, N. P. Vagin, and N. N. Yuryshev "Iodine atom production rates by electron impact versus post discharge reactions for pulsed COIL", Proc. SPIE 7196, High Energy/Average Power Lasers and Intense Beam Applications III, 719604 (24 March 2009); https://doi.org/10.1117/12.808379
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