| JÁNSKÝ, Jaroslav, Delphine BESSIÉRES, Ronny BRANDENBURG, Jean PAILLOL a Tomáš HODER. Electric field development in positive and negative streamers on dielectric surface. Plasma Sources Science and Technology. Bristol: IOP Publishing Ltd., roč. 30, č. 10, s. "105008", 11 s. ISSN 0963-0252. doi:10.1088/1361-6595/ac2043. 2021. |
Další formáty:
BibTeX
LaTeX
RIS
@article{1800702,
author = {Jánský, Jaroslav and Bessiéres, Delphine and Brandenburg, Ronny and Paillol, Jean and Hoder, Tomáš},
article_location = {Bristol},
article_number = {10},
doi = {http://dx.doi.org/10.1088/1361-6595/ac2043},
keywords = {electric field; coplanar barrier discharge; dielectric surface; electric charge; streamer; air; surface ionisation wave},
language = {eng},
issn = {0963-0252},
journal = {Plasma Sources Science and Technology},
title = {Electric field development in positive and negative streamers on dielectric surface},
url = {https://doi.org/10.1088/1361-6595/ac2043},
volume = {30},
year = {2021}
}
TY - JOUR
ID - 1800702
AU - Jánský, Jaroslav - Bessiéres, Delphine - Brandenburg, Ronny - Paillol, Jean - Hoder, Tomáš
PY - 2021
TI - Electric field development in positive and negative streamers on dielectric surface
JF - Plasma Sources Science and Technology
VL - 30
IS - 10
SP - "105008"
EP - "105008"
PB - IOP Publishing Ltd.
SN - 09630252
KW - electric field
KW - coplanar barrier discharge
KW - dielectric surface
KW - electric charge
KW - streamer
KW - air
KW - surface ionisation wave
UR - https://doi.org/10.1088/1361-6595/ac2043
N2 - Multiplication of primary electrons at a dielectrics/gas interface exposed to an external electric field leads to the formation of ultra-fast contracted ionisation waves called surface streamers with high local electric field in their microscopic heads. We study this phenomenon in coplanar barrier discharge in atmospheric pressure air where streamers of both polarities are generated simultaneously. The electric field strength development in the discharge is determined experimentally using time-correlated single photon counting enhanced optical emission spectroscopy with high spatiotemporal resolution. We show that very high values of the electric field of even above 1200 Td (approx. 300 kV cm(-1)) can be a physical reality for positive streamer directly at the dielectric surface. The peak value for negative streamer lies under 200 kV cm(-1). In parallel, a two-dimensional fluid model describes the rapidly changing electric field and the spatiotemporal discharge dynamics in good agreement with the experimental results. We also present the theoretical results of spatiotemporal development of electron density and of charge transfer to the dielectric surface via a collapsing sheath as the discharge structure decays within a very few nanoseconds.
ER -
JÁNSKÝ, Jaroslav, Delphine BESSIÉRES, Ronny BRANDENBURG, Jean PAILLOL a Tomáš HODER. Electric field development in positive and negative streamers on dielectric surface. \textit{Plasma Sources Science and Technology}. Bristol: IOP Publishing Ltd., roč.~30, č.~10, s.~''105008'', 11 s. ISSN~0963-0252. doi:10.1088/1361-6595/ac2043. 2021.
|
