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Pure Appl. Chem., 2006, Vol. 78, No. 6, pp. 1213-1225

Production of reactive species by atmospheric pressure streamers in N2-O2 mixtures

Milan Šimek, Martin Člupek, Václav Babický and Pavel Šunka

Institute of Plasma Physics, Department of Pulse Plasma Systems, Academy of Sciences of the Czech Republic, Za Slovankou 3, 18200 Prague 8, Czech Republic

Abstract: Streamer discharges in atmospheric gases are currently receiving increased attention in connection with environmental issues or new material treatment technologies. The chemical reactivity of streamer-produced plasma, created by various active atomic and molecular species, is a critical parameter for most application areas. Recently, advanced diagnostics based on optical and energy transfer methods have been applied to study dynamics and spatial distribution of several important streamer-produced species. This paper presents an overview of the most recently reported experimental achievements to monitor and detect reactive species, such as, e.g., NO, OH, and O3 radicals, nitrogen and oxygen atoms, or N2(A3Σ) metastables.