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LIF diagnostics of hydroxyl radical in atmospheric pressure He-H2O dielectric barrier discharges
- 1.0376780 - ÚFP 2013 RIV NL eng J - Journal Article
Dilecce, G. - Ambrico, P. F. - Šimek, Milan - De Benedictis, S.
LIF diagnostics of hydroxyl radical in atmospheric pressure He-H2O dielectric barrier discharges.
Chemical Physics. Roč. 398, č. 4 (2012), s. 142-147. ISSN 0301-0104. E-ISSN 1873-4421
Institutional research plan: CEZ:AV0Z20430508
Keywords : Spectroscopic Techniques * Plasma Diagnostics * LIF * OH * Dielectric Barrier Discharge
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 1.957, year: 2012
In this paper we present laser induced fluorescence (LIF) measurements of OH relative density in a He-H2O atmospheric pressure dielectric barrier discharge, with an estimation of the absolute density based on the quantitative analysis of the LIF signal and on the decay of OH density in the post-discharge. The possible interference of H2O2 photo-dissociation is discussed and finally excluded. Densities of the order of 1013cm-3 have been estimated in mixtures with water vapour content ranging from 2.3 to 23 Torr partial pressure. LIF diagnostic characteristics and sensitivity in the OH case at atmospheric pressure are discussed in comparison with absorption techniques.
Permanent Link: http://hdl.handle.net/11104/0209096
Number of the records: 1