High-resolution quantitative optical emission spectroscopy of surface barrier discharges

Warning

This publication doesn't include Faculty of Sports Studies. It includes Faculty of Science. Official publication website can be found on muni.cz.
Authors

HODER Tomáš SYNEK Petr BRANDENBURG Ronny VORÁČ Jan

Year of publication 2016
Type Conference abstract
MU Faculty or unit

Faculty of Science

Citation
Description Barrier discharges are characterized by the presence of isolating–dielectric barrier in front of at least one of the electrodes. As matter of fact, part of the discharge development happens directly on this dielectric surface. Under atmospheric pressure conditions, the ionization happens via fast streamer mechanism, so their quantitative experimental investigation on sub-mm dimension is a true challenge. The electric field distribution development within volume barrier discharges was already shown by Kozlov et al.1 using a time-correlated single photon counting technique. Recently, we improved the electric field determination method2 (tens-of-microns spatial and tens-of-picoseconds temporal resolution) and we applied it on the surface barrier discharges here. Ionization propagating with speeds of up to 10to6 m/s is recorded in atmospheric pressure air. From the emission intensity of two spectral bands of molecular nitrogen the electric field strength is determined with high spatiotemporal resolution. Validity of all necessary assumptions was carefully analyzed.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.

More info