Cross-correlation spectroscopy study of the Transient Spark discharge

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Authors

JANDA Mario HODER Tomáš SARANI Adollah BRANDENBURG Ronny MACHALA Zdenko

Year of publication 2016
Type Article in Proceedings
Conference 23rd Europhysics Conference on Atomic and Molecular Physics of Ionized Gases - proceedings
MU Faculty or unit

Faculty of Science

Citation
Field Plasma physics
Keywords spark discharge; streamer; air; spectroscopy
Description A streamer-to-spark transition in a self-pulsing transient spark (TS) discharge of positive polarity was investigated using cross-correlation spectroscopy. The entire temporal evolution of the TS, including the primary streamer, the secondary streamer, and the transition to spark was recorded at several wavelengths of spectral bands or lines corresponding to the second positive system of N2 (337.1 nm), the first negative system of N2+ (391.4 nm), and to atomic oxygen (777.1 nm) and nitrogen (746 nm). The obtained results contribute to a deeper understanding of the breakdown mechanism in air at high repetition frequencies.
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