Title :
Influence of Oxygen Impurity on the Atmospheric Pressure Helium Plasma Jet Behavior
Author :
Wenjun Ning ; Lijun Wang ; Shenli Jia ; Chen Wu ; Mingzheng Fu
Author_Institution :
State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
Trace of oxygen adding to the helium atmospheric pressure plasma jet can make the jet behave differently, such as dimming the plume and changing the jet length as well as the discharge current. Moreover, with certain specific ratio of oxygen/helium, double-bullet phenomenon could be captured by intensified charge couple device. The speeds of the bullets are estimated to be several kilometers per second.
Keywords :
discharges (electric); helium; oxygen; plasma diagnostics; plasma impurities; plasma jets; plasma transport processes; He-O2; atmospheric pressure helium plasma jet; bullet speeds; discharge current; double-bullet phenomenon; intensified charge couple device; jet length; oxygen impurity; plasma transport processes; plume dimming; pressure 1 atm; specific oxygen-helium ratio; Brightness; Electron tubes; Helium; Logic gates; Plasmas; Space charge; Atomspheric-pressure plasma; Plasma properties; Plasma transport processes; Plasma transport processes.;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2321015
