Title :
Time-Resolved Observation of Self-Organized Filaments Formed in a Helium-Dielectric Barrier Discharge
Author :
Itoh, Haruo ; Kobayashi, Kazuto ; Teranishi, Kenji ; Shimomura, Naoyuki ; Suzuki, Susumu
Author_Institution :
Chiba Inst. of Technol., Narashino, Japan
Abstract :
Self-organization phenomenon in a helium dielectric barrier discharge generated by a piezoelectric transformer (PT) has been investigated. Time-resolved images taken by an intensified charge-coupled device camera reveals the temporal behavior of the microdischarge filaments that coincide with the homogeneous discharge in a cycle of the secondary voltage of the PT. We have succeeded in optically observing the traces of the accumulated charges on the dielectric surface as dark spots remained after the extinction of the microdischarge filaments.
Keywords :
CCD image sensors; dielectric materials; electric breakdown; filamentation instability; helium; piezoelectric devices; plasma diagnostics; plasma sources; self-adjusting systems; transformers; He; ICCD camera; PT secondary voltage; dielectric barrier discharge; dielectric surface; helium DBD; homogeneous discharge; intensified charge coupled device; microdischarge filament behavior; microdischarge filament extinction; piezoelectric transformer; self organization phenomenon; self organized filaments; time resolved observation; Dielectrics; Discharges; Electrodes; Fault location; Plasmas; Surface discharges; Accumulated charges; dielectric barrier discharge; piezoelectric transformer; self organization phenomenon;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2160568
