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Images of Nanosecond Pulse-Driven Low Temperature Atmospheric Pressure Plasma Using Dielectric-Free Parallel Electrodes

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5 Author(s)
Chang-Seung Ha ; Dept. of Electr. Eng., Pusan Nat. Univ., Busan ; Choi, Joon-Young ; Ho-Jun Lee ; Dong-Hyun Kim
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Images of intensified charged coupled device and optical emission spectra are presented for a low temperature atmospheric pressure plasma jet, which is pulse-driven with a duration of 350 ns at a frequency of 40 kHz. He gas is injected with a gas flow rate of 5-30 L/min through two parallel electrodes that are exposed to the air and have a submillimeter gap. Driving voltage ranges from 400 to 600 V. The total power consumption is less than 2 W, and the plasma does not transit to an arc mode because of the short pulse duration.

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Plasma Science, IEEE Transactions on  (Volume:36 ,  Issue: 4 )