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Duc Ba NGUYEN, Quang Hung TRINH, Won Gyu LEE, Young Sun MOK. Analysis of an Ar plasma jet in a dielectric barrier discharge conjugated with a microsecond pulse[J]. Plasma Science and Technology, 2019, 21(9): 95401-095401. DOI: 10.1088/2058-6272/ab1d45
Citation: Duc Ba NGUYEN, Quang Hung TRINH, Won Gyu LEE, Young Sun MOK. Analysis of an Ar plasma jet in a dielectric barrier discharge conjugated with a microsecond pulse[J]. Plasma Science and Technology, 2019, 21(9): 95401-095401. DOI: 10.1088/2058-6272/ab1d45

Analysis of an Ar plasma jet in a dielectric barrier discharge conjugated with a microsecond pulse

  • In this work, an Ar plasma jet generated by an AC-microsecond-pulse-driven dielectric barrier discharge reactor, which had two ring-shaped electrodes isolated from the ambient atmosphere by transformer oil, was investigated. By special design of the oil insulation, a chemically active Ar plasma jet along with a safe and stable plasma process as well as low emission of CO and NOx were successfully achieved. The results indicated that applied voltage and frequency were basic factors influencing the jet temperature, discharge power, and jet length, which increased significantly with the two operating parameters. Meanwhile, gas velocity affected the jet temperature in a reverse direction. In comparison with a He plasma jet, the Ar plasma jet had relatively low jet temperature under the same level of the input parameters, being preferable for bio-applications. The Ar plasma jet has been tested to interact with human skin within 5 min without the perception of burnt skin and electrical shock.
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