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DOE OSTI · 1787607

Absolute atomic hydrogen density measurements in an atmospheric pressure plasma jet: generation, transport and recombination from the active discharge region to the effluent

Yue, Y.·Kondeti, V. S. S. K.·Bruggeman, P. J.
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Abstract

Atomic hydrogen (H) generated by atmospheric pressure radio frequency (RF) plasma jet is investigated by two-photon absorption laser induced fluorescence in a He-H 2 mixture. The reported time and spatially resolved H density profiles enable a detailed analysis of the species generation, transport and decay along the axis of symmetry of the jet. Here, the H density distribution for a continuous RF plasma jet corresponds well with the outcome of a Pseudo-1D plug flow model. In addition, RF power modulation has a strong effect on the H density in the active discharge region but has a negligible effect on the H density in the far effluent.

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70 PLASMA PHYSICS AND FUSION TECHNOLOGYRF modulationTALIFatmospheric pressure plasmaatomic hydrogenjetplug-flow model

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Yue, Y., Kondeti, V. S. S. K., Bruggeman, P. J.. 2020-03-23. Absolute atomic hydrogen density measurements in an atmospheric pressure plasma jet: generation, transport and recombination from the active discharge region to the effluent. https://doi.org/10.1088/1361-6595%2Fab7853

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