Title :
Formation of Nonbranched Positive Streamer With High-Frequency Impulse Voltage in Atmospheric Air
Author :
Matsumoto, Tad ; Kijima, Koji ; Izawa, Y. ; Nishijima, K.
Author_Institution :
Dept. of Electr. Eng., Univ. of Fukuoka, Fukuoka, Japan
Abstract :
The transition phenomenon of branched positive streamer to single filamentary discharge (SFD) with increase of the discharge-frequency was studied using a fast intensified charge coupled-device camera and an image converter camera. In addition, the gas temperature in SFD was measured by spectroscopic measurement. As a result, it was found that the transition to SFD progresses with localized gas heating along discharge channel. Furthermore, it was revealed that SFD is a nonbranched positive streamer.
Keywords :
high-frequency discharges; plasma diagnostics; atmospheric air; charge coupled-device camera; discharge channel; discharge-frequency; high-frequency impulse voltage; image converter camera; localized gas heating; nonbranched positive streamer; pressure 1 atm; single filamentary discharge; spectroscopic measurement; transition phenomenon; Cameras; Discharges (electric); Heating; Image converters; Plasma temperature; Streaming media; Temperature measurement; Atmospheric-pressure plasmas; corona; discharges; plasma temperature; plasma temperature.;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2328034
