Abstract
Atomic hydrogen (H) generated by an atmospheric pressure radio frequency (RF) plasma jet is investigated by two-photon absorption laser induced fluorescence in a He-H2 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. 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.
Original language | English (US) |
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Article number | 04LT01 |
Journal | Plasma Sources Science and Technology |
Volume | 29 |
Issue number | 4 |
DOIs | |
State | Published - 2020 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 IOP Publishing Ltd.
Keywords
- Atmospheric pressure plasma jet
- RF modulation
- TALIF
- atomic hydrogen
- plug-flow model