Nanosecond imaging and emission spectroscopy of argon streamer micro-discharge developing in coplanar surface DBD
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00101010" target="_blank" >RIV/00216224:14310/18:00101010 - isvavai.cz</a>
Alternative codes found
RIV/61389021:_____/18:00490430
Result on the web
<a href="http://dx.doi.org/10.1088/1361-6595/aac240" target="_blank" >http://dx.doi.org/10.1088/1361-6595/aac240</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6595/aac240" target="_blank" >10.1088/1361-6595/aac240</a>
Alternative languages
Result language
angličtina
Original language name
Nanosecond imaging and emission spectroscopy of argon streamer micro-discharge developing in coplanar surface DBD
Original language description
Time-resolved microscopic ICCD images, emission waveforms and spectra of triggered single-surface coplanar dielectric barrier micro-discharges were acquired with nanosecond time resolution. The micro-discharges were produced in pure argon by applying periodic high-voltage waveforms to a pair of embedded metallic electrodes at atmospheric pressure, and microscopic images of single micro-discharge events complemented with spectrally resolved emission were acquired with a time resolution of a few nanoseconds. Due to the low jitter of the micro-discharge onset with respect to the high-voltage pulse, we succeeded in separating the very weak emission produced during the course of streamer formation from the emission produced during the transition between the streamer and the subsequent transient glow phase. We identified the characteristic spectrometric signatures of the transition between the streamer and glow phases by analysing the lines belonging to the Ar(3s(2)3p(5)4p -> 3s(2)3p(5)4s) multiplet. By linking optical and electrical measurements, we estimated the electron density with a high temporal resolution. The electron densities of the streamer discharge, determined spectroscopically, were in the range of 10(19)-10(20) m(-3), while an estimate of 10(21) m(-3) was obtained using macroscopic electrical analysis combined with ICCD imaging. The evolution of selected population ratios of 2p levels during streamer evolution was determined for the first time, and this may be used in the future for advanced streamer diagnostics.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PLASMA SOURCES SCIENCE & TECHNOLOGY
ISSN
0963-0252
e-ISSN
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Volume of the periodical
27
Issue of the periodical within the volume
5
Country of publishing house
GB - UNITED KINGDOM
Number of pages
19
Pages from-to
1-19
UT code for WoS article
000433514600001
EID of the result in the Scopus database
2-s2.0-85048089803