Determination of N and O – Atom and N 2 (A) Metastable Molecule Densities in the Afterglows of N 2  and N 2 ‐O 2  Microwave Discharges | Zendy

Zerrouki H. | Zendy; Ricard A. | Zendy; Sarrette J. P. | Zendy

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Determination of N and O – Atom and N 2 (A) Metastable Molecule Densities in the Afterglows of N 2 and N 2 ‐O 2 Microwave Discharges

Author(s) -

Zerrouki H.,

Ricard A.,

Sarrette J. P.

Publication year - 2013

Publication title -

contributions to plasma physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.531

H-Index - 47

eISSN - 1521-3986

pISSN - 0863-1042

DOI - 10.1002/ctpp.201300008

Subject(s) - afterglow , metastability , molecule , impurity , spectroscopy , atom (system on chip) , atomic physics , analytical chemistry (journal) , materials science , physics , chemistry , gamma ray burst , chromatography , quantum mechanics , astronomy , computer science , embedded system

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 –(9·10 –5 –3·10 –3 )O 2 gas mixtures. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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