Activities per year
The interaction of kHz μs-pulsed atmospheric pressure He jets with metallic targets is studied through simulations and experiments, focusing on the differences between floating and grounded targets. It is shown that the electric potential of the floating target is close to grounded in the instants after the impact of the discharge, but rises to a high voltage, potentially more than half of the applied voltage, at the end of the 1 μs pulse. As a result, a return stroke takes place after the discharge impact with both grounded and floating targets, as a redistribution between the high voltage electrode and the low voltage target. Electric field, electron temperature and electron density in the plasma plume are higher during the pulse with grounded target than with floating target, as gradients of electric potential progressively dissipate in the latter case. Finally, at the fall of the pulse, another electrical redistribution takes place, with higher intensity with the highly-charged floating target than with the grounded target. It is shown that this phenomenon can lead to an increase in electric field, electron temperature and electron density in the plume with floating target.
|Number of pages||15|
|Journal||Plasma Sources Science and Technology|
|Publication status||Published - Sept 2020|
- metallic surfaces
- plasma jet
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- 1 Invited talk
Interaction of a kHz plasma jet with targets of different properties
Ana Sobota (Invited speaker), Goran B. Sretenović (Member), Vesna V. Kovačević (Member), Olivier J.A.P. van Rooij (Member), Marlous Hofmans (Member), Elmar T. Slikboer (Member), Olivier Y.N. Guaitella (Member), Enric Garcia-Caurel (Member), Pedro Viegas (Member) & Anne Bourdon (Member)29 Jun 2021
Activity: Talk or presentation types › Invited talk › Scientific
- 30 Citations - based on content available in repository, source: Scopus
- 1 Comment/Letter to the editor
Erratum: Interaction of an atmospheric pressure plasma jet with grounded and floating metallic targets: Simulations and experiments (Plasma Sources Sci. Technol. (2020) 29 (095011) DOI: 10.1088/1361-6595/aba7ec)Viegas, P., Hofmans, M., van Rooij, O., Obrusník, A., Klarenaar, B., Bonaventura, Z., Guaitella, O., Sobota, A. & Bourdon, A., Dec 2021, In: Plasma Sources Science and Technology. 30, 12, 2 p., 129501.
Research output: Contribution to journal › Comment/Letter to the editor › Academic › peer-reviewOpen AccessFile32 Downloads (Pure)