Title :
Images of Nanosecond Pulse-Driven Low Temperature Atmospheric Pressure Plasma Using Dielectric-Free Parallel Electrodes
Author :
Ha, Chang-seung ; Choi, Joon-Young ; Ho-Jun Lee ; Kim, Dong-Hyun ; Hae June Lee
Author_Institution :
Dept. of Electr. Eng., Pusan Nat. Univ., Busan
Abstract :
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.
Keywords :
high-frequency discharges; plasma jets; plasma properties; He gas injection; charged coupled device; dielectric-free parallel electrodes; driving voltage; frequency 40 kHz; nanosecond pulse-driven low temperature atmospheric pressure plasma; optical emission spectra; plasma jet; power consumption; pressure 1 atm; pulse duration; time 350 ns; voltage 400 V to 600 V; Atmospheric-pressure plasmas; Dielectrics; Electrodes; Frequency; Optical coupling; Optical devices; Optical pulses; Plasma devices; Plasma temperature; Stimulated emission; Atmospheric pressure plasma; nanosecond pulse;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.924267
