Optical diagnostics of streamers: from laboratory micro-scale to upper-atmospheric large-scale discharges

Optical emission produced by streamers is determined by spatial distribution of electronically excited atomic and diatomic species within the streamer head and streamer channel. Peculiarities of emission and LIF diagnostics dedicated to investigating the basic structure of streamers with high spatio...

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Published inJournal of physics. Conference series Vol. 550; no. 1; pp. 12037 - 10
Main Authors Šimek, M, Hoder, T, Prukner, V, Ambrico, P F
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2014
Subjects
Channels
Diagnostic systems
Emission
Emission analysis
Excitation
Low pressure
Physics
Radial distribution
Spatial distribution
Strategy
Temporal resolution
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Summary:Optical emission produced by streamers is determined by spatial distribution of electronically excited atomic and diatomic species within the streamer head and streamer channel. Peculiarities of emission and LIF diagnostics dedicated to investigating the basic structure of streamers with high spatio-temporal resolution are discussed. Possible strategies based on the 2D projections of cylindrically symmetric streamers to determine radial distributions of excited species within the streamer channel are illustrated for streamers produced in volume or on the dielectric surface at atmospheric and low pressures.
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ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/550/1/012037