Influence of nitrogen oxides NO and NO2 additives on singlet oxygen production in pulsed electron-beam sustained discharge

A. A. Ionin; Yu. M. Klimachev; A. Yu. Kozlov; A. A. Kotkov; I. V. Kochetov; A. P. Napartovich; O. A. Rulev; L. V. Seleznev; D. V. Sinitsyn; N. P. Vagin; N. N. Yuryshev

doi:10.1117/12.782481

12 May 2008 Influence of nitrogen oxides NO and NO₂ additives on singlet oxygen production in pulsed electron-beam sustained discharge

A. A. Ionin, Yu. M. Klimachev, A. Yu. Kozlov, A. A. Kotkov, I. V. Kochetov, A. P. Napartovich, O. A. Rulev, L. V. Seleznev, D. V. Sinitsyn, N. P. Vagin, N. N. Yuryshev

Author Affiliations +

Proceedings Volume 7005, High-Power Laser Ablation VII; 70051J (2008) https://doi.org/10.1117/12.782481
Event: High-Power Laser Ablation 2008, 2008, Taos, New Mexico, United States

Abstract

Influence of nitrogen oxides NO and NO₂ on specific input energy (SIE) and time behavior of singlet delta oxygen (SDO) luminescence excited by pulsed e-beam sustained discharge in oxygen was experimentally and theoretically studied. NO and NO₂ addition into oxygen results in small increase and decrease of SIE, respectively, the latter being connected with large energy of electron affinity to NO₂. The addition of 0.1-0.3% nitrogen oxides was experimentally and theoretically demonstrated to result in notable enhancement of SDO lifetime, which is related to a decrease of atomic oxygen concentration in afterglow. There was experimentally demonstrated that for getting high SDO concentration at gas pressure 30-60 Torr for the time interval less than ~0.5 s one needs to add not less than 0.2% nitrogen oxides into oxygen. Temperature dependence of relaxation constant for SDO quenching by unexcited oxygen was estimated by using experimental data on time behavior of SDO luminescence.

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A. A. Ionin, Yu. M. Klimachev, A. Yu. Kozlov, A. A. Kotkov, I. V. Kochetov, A. P. Napartovich, O. A. Rulev, L. V. Seleznev, D. V. Sinitsyn, N. P. Vagin, and N. N. Yuryshev "Influence of nitrogen oxides NO and NO₂ additives on singlet oxygen production in pulsed electron-beam sustained discharge", Proc. SPIE 7005, High-Power Laser Ablation VII, 70051J (12 May 2008); https://doi.org/10.1117/12.782481

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