Study of nanosecond pulsed corona-like discharge in deionized water by optical methods.

0483836 - ÚFP 2018 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Pongrác, Branislav - Šimek, Milan - Člupek, Martin - Babický, Václav - Lukeš, Petr
Study of nanosecond pulsed corona-like discharge in deionized water by optical methods.
2017 IEEE 19th International Conference on Dielectric Liquids (ICDL 2017). New York: IEEE, 2017, č. článku 8124691. IEEE. ISBN 978-1-5090-4877-9. E-ISSN 2153-3733.
[IEEE 19th International Conference on Dielectric Liquids (ICDL 2017) /19./. Manchester (GB), 25.06.2017-29.06.2017]
Grant CEP: GA ČR(CZ) GA15-12987S
Institucionální podpora: RVO:61389021
Klíčová slova: Underwater discharge * nanosecond pulsed discharge * time-resolved emission spectroscopy * time-resolved ICCD imaging
Obor OECD: Fluids and plasma physics (including surface physics)
http://ieeexplore.ieee.org/document/8124691/

Basic morphologic structure and emission fingerprints of micro-discharges produced in deionized water by short high voltage pulses (duration of 6 ns and amplitude of + 100 kV) are presented. Time-resolved ICCD images evidence typical streamer-like branched filamentary structure of the discharge with propagation velocity 2-4x10^5 m/s. Emission spectra show a broad-band continuum evolving during the first few nanoseconds followed by the well-known HI/OI atomic lines. The electron densities were estimated of the order of 10^19 cm-3.
Trvalý link: http://hdl.handle.net/11104/0278995