19 March 2002 Production of N, O, and H atoms in flowing molecular discharges
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Proceedings Volume 4460, Selected Research Papers on Spectroscopy of Nonequilibrium Plasma at Elevated Pressures; (2002) https://doi.org/10.1117/12.459411
Event: Selected Research Papers on Spectroscopy of Nonequilibrium Plasma at Elevated Pressures, 2002, Moscow, Russian Federation
Abstract
Densities of N, O and H atoms have been determined by NO titration in Ar-N2 and Ar-O2 and by a Ni catalytic probe in Ar-02 and Ar-H2 flowing DC and microwave post-discharges. For similar discharge parameters : tube diameter of 6 mm, gas flow rate of about 1N1 min-1 and pressure of 2-3 Torr, it is found higher densities of N and 0 atoms in the microwave post-discharge than in the D.C. one. About the same values of 0 atom density are obtained by NO titration and by the Ni catalytic probe. Spatial distribution of the atomic species was found homogeneous in the post discharge reactor by the use of a three dimensional hydrodynamic and kinetic model. Absolute densities of H atoms have been obtained in pure H2 post-discharge by the Ni probe.
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A. Ricard, A. Ricard, V. Monna, V. Monna, M. Gaillard, M. Gaillard, J. P. Sarrette, J. P. Sarrette, M. Mozetic, M. Mozetic, } "Production of N, O, and H atoms in flowing molecular discharges", Proc. SPIE 4460, Selected Research Papers on Spectroscopy of Nonequilibrium Plasma at Elevated Pressures, (19 March 2002); doi: 10.1117/12.459411; https://doi.org/10.1117/12.459411
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