Influence of nitrogen on thermodynamic properties and plasma composition in discharge tube of CO-laser

• Autorzy: Grigorian G. M. , Cenian A.

Identyfikatory

DOI

10.1515/aoter-2016-0018

• Języki publikacji: EN

Abstrakty

EN

The role of the addition of nitrogen to the discharge plasma of CO lasers on thermodynamic properties and composition of the laser active medium is discussed here. It is shown that nitrogen addition improves laser characteristics and changes the composition of the laser active medium. The addition of nitrogen significantly decreases CO dissociation level and concentrations of C atoms created in plasma-chemical reactions of laser discharge.

Słowa kluczowe

EN

CO-laser; vibrational kinetics; dissociation; plasma-chemistry; CN molecules; C2; electron kinetics

PL

dysocjacja; chemia plazmy; molekuły cyjanu; C2; kinetyka elektronów

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2016
• Tom: Vol. 37, no. 3
• Strony: 31--43
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wz.

Twórcy

autor

Grigorian G. M.

• St. Petersburg State University, 199034 St. Petersburg, Russia

autor

Cenian A.

• Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdansk, Poland

Bibliografia

• [1] Grigorian G.M., Kochetov I.V.: Balance of CO molecules in the plasma of a sealed-off CO laser. Plasma Phys. Rep. 30(2004), 788–796.
• [2] Aleinikov V.S., Masychev V.I.: CO Lasers. Moscow, Radio i Svyaz’ 1990.
• [3] Cenian A., Chernukho A., Borodin V., Śliwiński G.: Modeling of plasmachemical reactions in gas mixture of CO2 lasers. 1. Gas decomposition in pure CO2 glow discharge. Contr. Plasma Phys. 34(1994), 25–37.
• [4] Cenian A., Chernukho A., Borodin V.: Modeling of plasma-chemical reactions in gas mixture of CO2 lasers. 2. Theoretical model and its verification. Contrib. Plasma Phys. 35(1995), 273–296.
• [5] Cenian A., Chernukho A., Kukiełło P., Zaremba R., Borodin V., Śliwiński G.: The improvement of self-regeneration of gas mixtures in a convection-cooled 1.2 kW CO2 laser. J.Phys. D: Appl.Phys. 30(1997), 1103–1110.
• [6] Trubacheev E.A.: Investigation of physico-chemical characteristics of CO-lasers plasma. Trudy FIAN 102(1977), 3–57.
• [7] Grigorian G.M., Dymshits B.M., Ionikh Yu.Z.: Influence of oxygen on the parameters of the active medium in an electric-discharge CO laser. Sov J Quant Electron 19(1989), 889–893.
• [8] Ochkin V.N., Savinov S.Yu., Sobolev N.N., Trubacheev E.A.: Concentration of CN radicals in carbon monoxide laser plasma. Sov.J. Quantum Electron 4(1974), 319–321.
• [9] Grigorian G.M., Cenian A.: Formation and Excitation of CN Molecules in He-CO-N2-O2 Discharge Plasmas. Plasma Chem Plasma Process 31(2011), 337–352.
• [10] Konev Yu.B., Kochetov I.V., Pevgov V.G., SharkovV. F.: Analysis of the kinetic processes determining the parameters of CO lasers. Preprint IAE-2821, Moscow (1977) (in Russian).
• [11] Husain D., Kirsh L.J.: Reactions of atomic carbon C(23PJ) by kinetic absorption spectroscopy in the vacuum ultra-violet. Trans. Faraday Soc, 67(1971), 2025–2035.
• [12] Paramo A., Canosa A., Le Picard D., Sims I.R.: An experimental study of the intersystem crossing and reactions of C2(X1Σ+g ) and C2(a3Πu) with O2 and NO at very low temperature (24?300 K). J. Chem. Phys. 110(2006), 3121–3127.
• [13] Chastaing D., Le Picard D., Sims I.R.: Direct kinetic measurements on reactions of atomic carbon, C(3P), with O2 and NO at temperatures down to 15 K. J. Chem. Phys. 112(2000), 8466–8469.

Uwagi

EN

This work has been supported by St. Petersburg University (grant No. 11.38.203.2014 ). Authors express special thanks to I.V. Kochetov for precise calculations of EEDF.

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.