Ignition Delay for Atmospheric Pressure Microplasmas

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 2009 English Publisher:WileyJournal:Contributions to Plasma Physics, volume 49, pages 21-26 (issn: 0863-1042, eissn: 1521-3986,

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Authors: H. E. Porteanu; S. Kühn; R. Gesche;

doi: 10.1002/ctpp.200910004

Ignition Delay for Atmospheric Pressure Microplasmas

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Abstract

AbstractThe ignition process in microplasmas is characterized by time resolved microwave reflection coefficient measurements, using a specially equipped vector network analyzer. We measured the time between the switching on of the microwave power and the onset of the plasma state in air at atmospheric pressures. The delay time decreases from approx. 3 ms to 60 μ s by increasing the microwave power from values just above the ignition threshold to higher values. A simple model shows the role of the free electrons in air and of the electrodes in the ignition process (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Leibniz Association
Germany
Ferdinand-Braun-Institut
Germany

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