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Ferrite Loaded DBD Plasma Device

  • General and Applied Physics
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Abstract

An atmospheric pressure plasma jet device with dielectric barrier discharge was built using low cost 5C22 thyratron valve and ferrite transformer. The ferrite transformer increases the intensity about four times the primary pulse and lengthens the high voltage pulse, keeping the rise time of the thyratron pulse. Spectrometer measurement shows excited nitrogen molecular emissions of second positive system. The most intense nitrogen molecular line, 357.69 nm, was chosen to monitor the time dependence of the discharge. Synthetic temperature, using 380.49 nm line of N2 emission and SpecAir simulation, shows plasma gas temperature of 300 K. To corroborate this low temperature, the plasma jet is applied to human tongue with no harm or bad physical feeling.

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Acknowledgments

The author wish to thank Dr. Vadym Prysiazhnyi, DFQ-FEG-UNESP, who helped to perform DBD power measurements, and Prof. Dr. Júlio Akashi Hernandes to localize the reference [13].

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Authors and Affiliations

  1. Universidade Estadual de Campinas - UNICAMP, Instituto de Física “Gleb Wataghin”, Campinas, S.P., 13083-970, Brazil

    M. Machida

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  1. M. Machida
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Correspondence to M. Machida.

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Machida, M. Ferrite Loaded DBD Plasma Device. Braz J Phys 45, 132–137 (2015). https://doi.org/10.1007/s13538-014-0293-8

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  • DOI: https://doi.org/10.1007/s13538-014-0293-8

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