Atmospheric-pressure LF microplasma jets

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  • KITANO Katsuhisa
    Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University
  • HAMAGUCHI Satoshi
    Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University

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Other Title
  • 低周波大気圧マイクロプラズマジェット
  • テイシュウハ タイキアツ マイクロプラズマ ジェット

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Abstract

<p>Physics and material processing based on low-frequency (LF) microplasma jets are discussed in the light of new processing applications in liquids. An LF microplasma jet is a nonequilibrium atmospheric-pressure plasma, in which a low gas temperature is maintained (almost room temperature) and the electron temperature is relatively high. LF micro plasma jets are generated in a system comprising a dielectric/metal tube (through which He gas is injected) with a single electrode attached to it , to which LF and high-voltage pulses (〜10kV, 〜10kHz) are applied. It is shown that a series of transient discharges occur in the He gas flow between the powered electrode and the electric ground. Plasma jets can be used for liquid-based material processes such as reduction, polymerization and sterilization in liquids.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 77 (4), 383-389, 2008-04-10

    The Japan Society of Applied Physics

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