BÍLEK, Petr, Lucia KUTHANOVÁ, Tomáš HODER and Milan ŠIMEK. Atmospheric pressure Townsend discharge in pure nitrogen—a test case for N2( A 3 ς u + , v ) kinetics under low E/N conditions. Plasma Sources Science and Technology. IOP Publishing Ltd, 2022, vol. 31, No 8, p. 1-21. ISSN 0963-0252. Available from: https://dx.doi.org/10.1088/1361-6595/ac7ad1.
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Basic information
Original name Atmospheric pressure Townsend discharge in pure nitrogen—a test case for N2( A 3 ς u + , v ) kinetics under low E/N conditions
Authors BÍLEK, Petr (guarantor), Lucia KUTHANOVÁ (703 Slovakia, belonging to the institution), Tomáš HODER (203 Czech Republic, belonging to the institution) and Milan ŠIMEK.
Edition Plasma Sources Science and Technology, IOP Publishing Ltd, 2022, 0963-0252.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10305 Fluids and plasma physics
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 3.800
RIV identification code RIV/00216224:14310/22:00126853
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1088/1361-6595/ac7ad1
UT WoS 000841605600001
Keywords in English atmospheric pressure Townsend discharge; dielectric barrier discharge; kinetic modeling; molecular nitrogen; second positive system of N2
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 27/2/2024 13:21.
Abstract
This work investigates the kinetics of the N2( A3ςu+,v ) state in the atmospheric-pressure Townsend discharge (APTD) operated in a barrier discharge setup in pure nitrogen. To understand the complex nature of the N2( A3ςu+,v ) state we have developed a detailed state-to-state vibrational kinetic model of N2 applicable mainly at low reduced electric fields ( < 200 Td). The kinetic model benefits from the determination of the electric field and the electron density profile using the equivalent electric circuit analysis. The knowledge of both parameters significantly reduces the number of free parameters of the model and thus improves the accuracy of kinetic predictions. The results of the kinetic model are compared with the measured emission spectra of the second positive system and the Herman infrared system of N2. The use of the sensitivity analysis method leads to a better understanding of the role of specific elementary processes in the APTD mechanism and also to the determination of the density of the two lowest vibrational levels of N2( A3ςu+ ), which varies between 1012 and 1014 cm-3 depending on the applied voltage. The determination is important, because the two lowest vibrational levels of N2( A3ςu+ ) are considered to play an important role in the secondary emission of electrons from dielectric surfaces. This work shows that the complex state-to-state kinetic modeling in combination with the phase-resolved emission spectroscopy is the key to a better understanding of the processes responsible for establishing and sustaining the APTD mechanism in nitrogen.
Links
GA15-04023S, research and development projectName: Pokročilý výzkum kinetických procesů ve streamerových výbojích
Investor: Czech Science Foundation
90097, large research infrastructuresName: CEPLANT
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