Spatially resolved simulation of an Radio-Frequency driven atmospheric pressure plasma jet in ambient air

Torben Hemke, Markus Gebhardt, Alexander Wollny, Ralf Peter Brinkmann, Thomas Mussenbrock

38th IEEE In­ter­na­tio­nal Con­fe­rence on Plas­ma Sci­ence 2011, Chicago, Illinois, USA, June 25-30


Abstract

Radio frequency driven plasma jets are frequently employed as efficient plasma sources for surface modification and other processes at atmospheric pressure, e.g. in the increasing field of biomedical applications. The radio-frequency drivenmicro-scaled atmospheric pressure plasma jet (?APPJ) is a particular variant of that concept. In this work, the characteristics of a ?APPJ operated with a helium-oxygen mixture and its interaction with ambient air are studied by spatially resolved numerical simulation. The density and temperature of the electrons, as well as the concentration of all relevant species are studied in both the discharge itself and its effluent. Financial support from the German Research Foundation in the frame of the Research Group FOR 1123 Physics of Microplasmas is gratefully acknowledged.

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