Informace o publikaci

3D Imaging of the Single Microdischarge Development in Coplanar Barrier Discharges in Synthetic Air at Atmospheric Pressure

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HODER Tomáš ŠÍRA Martin KOZLOV K. V. WAGNER H. E.

Rok publikování 2009
Druh Článek v odborném periodiku
Časopis / Zdroj Contributions to plasma physics
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://onlinelibrary.wiley.com/doi/pdf/10.1002/ctpp.200910035
Doi http://dx.doi.org/10.1002/ctpp.200910035
Klíčová slova Coplanar barrier discharge; cross-correlation spectroscopy; 3D imaging
Popis The evolution of the luminosity of the coplanar barrier discharge in the single-filament mode was studied by the technique of cross-correlation spectroscopy and intensified high-speed CCD camera. For the first time 3D-spatially and temporally resolved investigations of the luminosity of second positive (at 337.1 nm) and first negative (at 391.5 nm) system of molecular nitrogen in this discharge type were realized. Although the coplanar barrier discharge is sometimes referred to as a pure surface discharge, it shows clear 3D structure. From these experimental data, the propagation of the cathode-directed ionizing wave in the space above the gap is clearly seen. Also, a second ionizing wave propagating towards anode later on has been detected, too. The diffuse spots created by impact of ionizing waves onto the dielectrics and their propagation on the dielectric surface is described. The results for the coplanar barrier discharge are compared with corresponding experimental results obtained for the volume barrier discharge and basic similarities are pointed out.
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