Optical Observation of Nitrogen Propagation in Argon Plasma

While the gas flow patterns in reactors can be visualized using models, it has proven that it is difficult to measure them. This paper shows that the gas flow pattern for pulsed injection of nitrogen gas into argon plasma can be readily seen in the optical emission intensity. As N 2 enters the Ar pl...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2011-11, Vol.39 (11), p.2544-2545
Main Authors: Ogawa, D., Goeckner, M. J., Overzet, L. J.
Format: Article
Language:English
Subjects:
Argon
Argon plasma
Emission
Gas flow
image analysis
Molecules
Nitrogen
Optical imaging
optical spectroscopy
Penning effect
Pictures
Plasma measurements
Plasma physics
Plasmas
pressure effects
Radio frequency
Reactors
spraying
Stimulated emission
velocity measurement
Citations: Items that this one cites
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Summary:While the gas flow patterns in reactors can be visualized using models, it has proven that it is difficult to measure them. This paper shows that the gas flow pattern for pulsed injection of nitrogen gas into argon plasma can be readily seen in the optical emission intensity. As N 2 enters the Ar plasma, N 2 molecules cause increased optical emission intensity by the Penning effect. This allows one to measure the N 2 propagation. In this paper, we present the pictures with the measurement details and analysis.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2011.2159625