Effect of applied voltage parameters on the electric characteristics of a DBD in coaxial electrode configuration

D. Petrovic, T. Martens, C. De Bie, W.J.M. Brok, A. Bogaerts

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Abstract

A numerical parameter study has been performed for a cylindrical atmospheric pressure dielectric barrier discharge (DBD) in helium with nitrogen impurities using a two-dimensional time dependent fluid model. The calculated electric currents and gap voltages as a function of time for a given applied potential are presented, as well as the number densities of the plasma species. This study shows that for the geometry under consideration the applied voltage parameters have a large impact on the electric current profiles which can range from one narrow peak, over multipeak to a sine shaped profile. The electrical characteristics of the discharge are determined by the nitrogen ions for the entire range of frequencies applied, while helium ions are of minor importance. The electron densities are about two orders of magnitude lower than the dominant ion densities.
Original languageEnglish
Title of host publicationProceedings of the 29th International Conference on Phenomena in Ionized Gases (ICPIG 2009), July 12-17, 2009, Cancún, México
EditorsJ. Schmidt, M. Simek, S. Pekarek
PagesPA10-11-1/4
Publication statusPublished - 2009
Event29th International Conference on Phenomena in Ionized Gases (ICPIG 2009), July 12-17, 2009, Cancún, México - Cancún, Mexico
Duration: 12 Jul 200917 Jul 2009

Conference

Conference29th International Conference on Phenomena in Ionized Gases (ICPIG 2009), July 12-17, 2009, Cancún, México
Abbreviated titleICPIG 2009
CountryMexico
CityCancún
Period12/07/0917/07/09

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