On the Ar I 419.8 nm/751.5 nm (3p5/2p5) line intensity ratio for electric field measurement in dielectric barrier discharge in argon at atmospheric pressure

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00140575" target="_blank" >RIV/00216224:14310/25:00140575 - isvavai.cz</a>

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1361-6595/adaa9b" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6595/adaa9b</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6595/adaa9b" target="_blank" >10.1088/1361-6595/adaa9b</a>

Result language

angličtina

Original language name

On the Ar I 419.8 nm/751.5 nm (3p5/2p5) line intensity ratio for electric field measurement in dielectric barrier discharge in argon at atmospheric pressure

Original language description

Ar I 419.8 nm/751.5 nm line intensity ratio is suggested as a measure of the electric field in atmospheric pressure dielectric barrier discharges (DBDs) in argon. Using the electron distribution function calculated from the Boltzmann equation, electron impact excitation cross sections, quenching coefficients and other atomic data, theoretical dependencies of several line intensity ratios constructed from Ar I 3p5 4p and 3p5 5p argon lines on the electric field were calculated. Among them, the intensity ratio of 5p line at 419.8 nm (1sp5 in Paschen notation) to 4p line at 751.5 nm line (1s2p5) was found to be sensitive in both the theory and the experiment. The suggested line ratio was applied to the study of an atmospheric pressure volume DBD in pure argon with sinusoidal voltage excitation. The spatiotemporal distribution of light emissions on 4p and 5p lines was measured using the time-correlated single photon counting technique with high temporal (180 ps) and spatial (25 μm) resolution. The light emission on 419.8 nm line indicated the high electric field region in the propagating cathode-directed streamer due to a high excitation energy (14.58 eV) and a short effective lifetime (150 ps) of the 3p5 level. Several measured and calculated electron impact excitation cross sections were examined to interpret the measured line intensity ratio. Using the calculation based on a combination of the calculated (Zatsarinny 2014) and the measured cross section (Boffard 2007) for 2p5 and 3p5 levels, the electric field strengths reaching 110-120 Td were measured in the streamer head. The assumptions and limitations of this approach, as well as its instrumentation requirements, are discussed.

Czech name

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Czech description

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Type

J_imp - 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)

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)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plasma Sources Science and Technology

ISSN

0963-0252

e-ISSN

—

Volume of the periodical

34

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

„015013-1“-„015013-16“

UT code for WoS article

001410409600001

EID of the result in the Scopus database

2-s2.0-85218048905