期刊
PLASMA SOURCES SCIENCE & TECHNOLOGY
卷 28, 期 6, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6595/ab2230
关键词
filamentary discharge; non-equilibrium plasma; nanosecond constriction; nanosecond surface dielectric barrier discharge
资金
- LabEx Plas@Par
- French National Research Agency (ASPEN Project)
- French-Russian international laboratory LIA KaPPA 'Kinetics and physics of pulsed plasmas and their afterglow' (RFBR project) [17-52-16001]
- China Scholarship Council (CSC)
- French-Russian international laboratory LIA KaPPA 'Kinetics and physics of pulsed plasmas and their afterglow' (CNRS)
Streamer-to-filament transition is a general feature of nanosecond discharges at elevated pressure. The transition is observed in different discharges by different groups: in the nanosecond surface dielectric barrier discharges (nSDBDs) in a single shot regime at high pressure (2-15 bar), in the point-to-point or point-to-plane open electrodes discharges at high repetitive frequency (so-called nanosecond repetitive pulsed discharges, NRPDs) at atmospherics pressure. The present paper contains experimental analysis of plasma properties in the filamentary nSDBD: the electrical current, the specific deposited energy, the electron density and the electron temperature were measured for a wide range of pressures and voltages. A model explaining plasma properties in filamentary nanosecond discharges and the role of excited species in streamer-to-filament transition is suggested and discussed.
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