Spatially Resolved VUV Spectral Imaging of Pulsed Atmospheric Flashover

Author

Laity, George R. ; Fierro, Andrew S. ; Hatfield, Lynn L. ; Dickens, James C. ; Neuber, Andreas A.

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Tech Univ., Lubbock, TX, USA

Volume

39

Issue

11

fYear

2011

Firstpage

2122

Lastpage

2123

Abstract

The quantitative role of self-produced vacuum-ultraviolet (VUV) light on photoionization-dominated gas discharges is currently an area of interest in the aerospace community. In this paper, we present the images of the VUV spectroscopic analysis of a pulsed atmospheric flashover, where the spatial content of emission relative to electrode geometry has been preserved. The observed spatial profile of emission is dependent on radiating species in the range of 120-125 nm and is discussed in relation to the physics of nanosecond discharges.

Keywords

flashover; photoionisation; plasma diagnostics; VUV spectroscopic analysis; aerospace community; electrode geometry; emission spatial profile; nanosecond discharge physics; photoionization-dominated gas discharge; pulsed atmospheric flashover; radiation analysis; self-produced vacuum-ultraviolet light; spatially resolved VUV spectral imaging; wavelength 120 nm to 125 nm; Anodes; Cathodes; Dielectrics; Discharges; Iron; Surface discharges; Flashover; imaging; plasmas; spectroscopy; surface discharges;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2011.2151881

Filename

5776698