Journal
PHYSICS OF PLASMAS
Volume 19, Issue 7, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4736716
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Funding
- Federal German Ministry of Education and Research [BMBF FKZ 03FO1072]
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Barrier discharges at atmospheric pressure in nitrogen-oxygen mixture powered by high voltage pulses of widths between 10 mu s and 200 ns were investigated. The development of the microdischarges on rising and falling slopes was recorded by streak and intensified CCD cameras simultaneously. The breakdown on the falling slope strongly depends on the pulse width. As a result of pulse width variation the starting point of ignition changes and positive and negative streamers occur simultaneously in the falling slope. The observed effect is caused by the electric field rearrangement in the gap due to the different positive ion densities related to their gap crossing times. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4736716]
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