Iodine atom production rates by electron impact versus post discharge reactions for pulsed COIL

A. P. Napartovich; I. V. Kochetov; N. P. Vagin; N. N. Yuryshev

doi:10.1117/12.808379

24 March 2009 Iodine atom production rates by electron impact versus post discharge reactions for pulsed COIL

A. P. Napartovich, I. V. Kochetov, N. P. Vagin, N. N. Yuryshev

Proceedings Volume 7196, High Energy/Average Power Lasers and Intense Beam Applications III; 719604 (2009) https://doi.org/10.1117/12.808379
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

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.

Citation Download Citation

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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