Determination of N and O - Atom and N2(A) Metastable Molecule Densities in the Afterglows of N2 and N2-O2 Microwave Discharges

被引:15
作者
Zerrouki, H. [1 ,2 ]
Ricard, A. [1 ,2 ]
Sarrette, J. P. [1 ,2 ]
机构
[1] Univ Toulouse, UPS, INPT, LAPLACE,Lab Plasma & Convers Energie, F-31062 Toulouse 9, France
[2] CNRS, LAPLACE, F-31062 Toulouse, France
关键词
Optical emission spectroscopy; N-2-O-2 HF flowing afterglows; N density; O density; N-2 (A) metastable density; HEAVY-PARTICLE KINETICS; ELECTRON; PLASMA; BETA;
D O I
10.1002/ctpp.201300008
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Early afterglows of N-2 and N-2-O-2 flowing microwave discharges are characterized by optical emission spectroscopy. The N and O atom and N-2(A) metastable molecule densities are determined by optical emission spectroscopy after calibration by NO titration for N-atoms and measurements of NO and N-2 band intensities for O-atoms and N-2(A) metastable molecules. By using N-2 tanks with 50 and 10 ppm impurity, it is determined in the afterglow an O- atom impurity of 150-200 ppm. Variations of the N and O-atom and N-2(A) metastable molecule densities are obtained in the early afterglow of N-2-(910(-5)-310(-3))O-2 gas mixtures. ((c) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
引用
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页码:599 / 604
页数:6
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