Streamer evolution in a methane-based pulsed-dc discharge

Author

Brown, Michael S. ; Forlines, Robert A. ; Ganguly, Biswa N.

Author_Institution

Innovative Sci. Solutions Inc., Dayton, OH, USA

Volume

33

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

256

Lastpage

257

Abstract

Time-resolved spectrally-filtered CH^* emission images of streamer development in a pulsed-direct current (dc) discharge in a methane/nitrogen mixture were recorded as a function of delay from breakdown. Single-shot images reveal one or two streamers while images averaged over 100 shots show up to eight. The intensity distribution along the inter-gap axis reflects the rise and fall of the discharge current. The intensity distribution parallel to the electrode surfaces reflects lateral discharge growth.

Keywords

discharges (electric); gas mixtures; nitrogen; organic compounds; plasma diagnostics; time resolved spectra; discharge current; electrode surfaces; intensity distribution; intergap axis; methane-nitrogen mixture; pulsed-direct current discharge; single-shot images; streamer; time-resolved spectrally-filtered emission; Breakdown voltage; Charge-coupled image sensors; Delay; Electric breakdown; Electrodes; Nitrogen; Steady-state; Streaming media; Switches; Voltage control; Emission; gas discharges; plasma properties;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2005.845116

Filename

1420424