Investigation of the transition from streamer to uniform ‘overvoltage’ mode of atmospheric air nanosecond-pulsed dielectric barrier discharge
- Drexel Univ., Camden, NJ (United States). C&J Nyheim Plasma Inst.; DOE/OSTI
- Drexel Univ., Camden, NJ (United States). C&J Nyheim Plasma Inst.
A nanosecond-pulsed dielectric barrier discharge ignited in atmospheric air was studied by optical emission spectroscopy to investigate the time- and space-resolved development of the reduced electric field. The discharge operated in two distinct modes that correlate with the values of the applied electric field: non-uniform streamer regime and uniform breakdown regime. It is shown that the reduced electric field in the non-uniform mode corresponds to the propagation of cathode-directed streamers, while in uniform discharge both molecular nitrogen emission and the reduced electric field are uniformly distributed along the gap during the initial discharge development stage with corresponding lower reduced electric field values.
- Research Organization:
- Drexel Univ., Philadelphia, PA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- Grant/Contract Number:
- SC0016492
- OSTI ID:
- 1612593
- Alternate ID(s):
- OSTI ID: 23011404
- Journal Information:
- Journal of Physics. D, Applied Physics, Journal Name: Journal of Physics. D, Applied Physics Journal Issue: 10 Vol. 52; ISSN 0022-3727
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Numerical studies on plasma parameter modulation of atmospheric pressure dielectric barrier discharge via 200 kHz/13.56 MHz dual-frequency excitation
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journal | June 2019 |
Correlation between electric field, current and photon emission in subsequent barrier corona microdischarges
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journal | November 2019 |
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