Issue Eur. Phys. J. Appl. Phys. Volume 47, Number 2, August 2009 11th International Symposium on High Pressure, Low Temperature Plasma Chemistry (HAKONE XI) Article Number 22809 Number of page(s) 6 Section 11th International Symposium on High Pressure, Low Temperature Plasma Chemistry (HAKONE XI) DOI 10.1051/epjap/2009083 Published online 28 April 2009

Eur. Phys. J. Appl. Phys. 47, 22809 (2009)
DOI: 10.1051/epjap/2009083

Comparison of three excitation schemes for cylindrical dielectric barrier discharges

A. Brockhaus, R. Sauerbier and J. Engemann

Forschungszentrum für Mikrostrukturtechnik – fmt University of Wuppertal, Rainer-Gruenter-Str. 21, 42119 Wuppertal, Germany

brockh@uni-wuppertal.de

Received: 8 January 2009 / Accepted: 24 February 2009 / Published online: 28 April 2009

Abstract
Three dielectric barrier discharge jets have been analyzed mainly by spectroscopic methods. Power densities, electron concentrations, and heavy particle temperatures are in the same range for the jets. All three jets are excited by sinusoidal voltages with kilohertz frequencies. High speed imaging proves that for quite different excitation schemes the jet plasma consists of isolated, fast moving, light-emitting structures. These so-called plasma bullets are emitted at a certain phase of the excitation voltage and occur in one half-cycle only.

PACS
52.80.-s - Electric discharges.
52.80.Hc - Glow; corona.
51.50.+v - Electrical properties.

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