Title :
Temporally Resolved Imaging of Jet-Type Dielectric Barrier Discharge Using He and Ar/Acetone Crossed Gas Flows
Author :
Urabe, Keiichiro ; Sands, Brian L. ; Sakai, Osamu ; Ganguly, Biswa N.
Author_Institution :
Dept. of Electron. Sci. & Eng., Kyoto Univ., Kyoto, Japan
Abstract :
We report on temporally resolved images in a jet-type dielectric barrier discharge with two crossed gas flows obtained by a spectrally filtered intensified charge-coupled device (ICCD) camera. The crossed-flow configuration of He and Ar gases and a small acetone impurity added into the Ar flow simulated a discharge configuration and an organic precursor used for the practical application of material processing, respectively. From the ICCD images, streamer and transient glow discharges could be distinguished between the electrode and the substrate. Filtered emission from excited N2+, CH, C2, He, and Ar also revealed the excitation and decomposition processes in the discharge.
Keywords :
CCD image sensors; argon; glow discharges; helium; organic compounds; plasma diagnostics; plasma jets; plasma materials processing; Ar; He; argon-acetone crossed gas flows; decomposition processes; dielectric barrier discharge; discharge configuration; excitation processes; excited Ar emissions; excited C2 emissions; excited CH emissions; excited He emissions; excited N2+ emissions; filtered emission; helium-acetone crossed gas flows; intensified charge coupled device; jet type DBD; material processing; organic precursor; spectrally filtered ICCD camera; streamer discharges; temporally resolved imaging; transient glow discharges; Argon; Atmospheric measurements; Discharges; Electron tubes; Helium; Plasmas; Transient analysis; Atmospheric-pressure plasma jet (APPJ); dielectric barrier discharge (DBD); temporally resolved imaging;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2111389
