Barrier discharges in CO2 – optical emission spectra analysis and E/N determination from intensity ratio
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00141913" target="_blank" >RIV/00216224:14310/25:00141913 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1361-6595/adc7d7" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6595/adc7d7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6595/adc7d7" target="_blank" >10.1088/1361-6595/adc7d7</a>
Alternative languages
Result language
angličtina
Original language name
Barrier discharges in CO2 – optical emission spectra analysis and E/N determination from intensity ratio
Original language description
Barrier discharges in CO2 are investigated using optical emission spectroscopy and electrical measurements, with the support of spatially one-dimensional fluid modelling. This study focuses on a sinusoidally driven atmospheric pressure Townsend discharge (APTD) and a single- and multi-filament barrier discharge at atmospheric pressure. The spectra of weak CO2 barrier discharge emission in UV-vis-NIR range are recorded. The optical emission of selected vibrational spectral bands is analyzed and the E/N in barrier discharges is determined using the developed intensity ratio method and kinetic data available in the literature. The technique of time-correlated single-photon counting is used to obtain the necessary sub-nanosecond temporal resolution and high signal sensitivity for the single-filament experiment. After the necessary calibration, the E/N of 330 Td is measured in the barrier discharge streamer head. This is coherent with the results of numerical modelling. The E/N determined in APTD has a value of 110 Td, which agrees within 10% with the results of the electrical equivalent circuit model. The uncertainties coming from kinetic data and the low sensitivity of some rate coefficient ratios complicate the easy and broad utilization of the method. Future steps are therefore proposed, including uncertainty quantification and sensitivity analysis of the simplified model and necessary synthetic spectra fitting.
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
2025
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 and Technology
ISSN
0963-0252
e-ISSN
1361-6595
Volume of the periodical
34
Issue of the periodical within the volume
5
Country of publishing house
GB - UNITED KINGDOM
Number of pages
20
Pages from-to
„055008“
UT code for WoS article
001491765700001
EID of the result in the Scopus database
2-s2.0-105005733875