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N2(A3+u) behaviour in a N2-NO surface dielectric barrier discharge in the modulated ac regime at atmospheric pressure
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SYSNO ASEP 0347294 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title N2(A3+u) behaviour in a N2-NO surface dielectric barrier discharge in the modulated ac regime at atmospheric pressure Author(s) Šimek, Milan (UFP-V) RID, ORCID
Ambrico, P. F. (IT)
Dilecce, G. (IT)
Prukner, Václav (UFP-V) RID, ORCID
Schmidt, Jiří (UFP-V) RID
De Benedictis, S. (IT)Source Title Journal of Physics D-Applied Physics. - : Institute of Physics Publishing - ISSN 0022-3727
Roč. 43, č. 12 (2010), s. 124003-124003Number of pages 8 s. Publication form web - web Language eng - English Country GB - United Kingdom Keywords surface barier discharge ; laser induced fluorescence ; metastables ; nitric oxide Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GA202/08/1106 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000275435200004 DOI 10.1088/0022-3727/43/12/124003 Annotation Optical, electrical and discharge product measurements were performed in order to reveal the behaviour of N2(A3+u) metastables in a surface dielectric barrier discharge (DBD) driven in N2 with small NO admixtures in a modulated ac regime. Metastable species were detected both in a thin surface plasma layer and in the space afterglow through plasma induced emission and optical-optical double resonance laser induced fluorescence, respectively. Basically, the observed N2(A3+u) species follow the discharge current oscillations in the plasma layer, while they evolve on a millisecond time scale due to diffusion through the space afterglow. Emission spectrometry provides a rough estimation of average metastable concentration in a thin surface plasma layer similar to 9x1013 cm-3. Fluorescence measurements then allow an upper estimation of metastable concentration in the space afterglow <= 1x1012 cm-3. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2011
Number of the records: 1