Publication details

Space and Time Resolved Optical Emission Spectroscopy of Diffuse Surface Coplanar Barrier Discharge in Nitrogen

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Year of publication 2008
Type Article in Proceedings
Conference 2nd Central European Symposium on Plasma Chemistry, 31st August-4th September 2008, Brno, Czech Republic, Book of Extended Abstracts
MU Faculty or unit

Faculty of Science

Field Plasma physics
Keywords diffuse coplanar surface barrier discharge;space and time resolved spectroscopy
Description In this work we have studied the influence of input voltage ampitude and electrode temperature on plasma properties of the diffuse coplanar surface barrier discharge. The outer conditions and discharge configuration can substantially influence properties of the discharge. Better understanding of these effects can lead to optimization of the discharge parameters for industrial applications. In this work the discharge was operated in nitrogen at atmospheric pressure. The electrode gap width of 0.7 mm and gas flow were kept in all cases. The input voltage was varied in the range of 12-18kV and grounded electrode temperature in the range of 10-80oC. Plasma parameters were studied by the means of time and space resolved optical emission spectroscopy and oscilloscopic measurements. These measurements gave us time and space distribution of discharge luminosity (e.g. intensities of second positive and first negative systems of nitrogen) and 1D-spatial profiles of rotational and vibrational temperatures.
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