Simultaneous measurement of two-dimensional electron and vapour density distribution over vacuum arc

Author

Inada, Yoshihisa ; Kamiya, Toshio ; Matsuoka, Shingo ; Kumada, A. ; Ikeda, Hinata ; Hidaka, K.

Author_Institution

Dept. of Electr. Eng. & Inf. Syst., Univ. of Tokyo, Tokyo, Japan

fYear

2014

fDate

Sept. 28 2014-Oct. 3 2014

Firstpage

233

Lastpage

236

Abstract

Shack-Hartmann type laser wavefront sensors were applied to simultaneous imaging of two-dimensional electron and copper vapour density distributions over decaying vacuum arc discharges with a pulsed current waveform. Our experimental results showed that the proportions of the electron densities in the total particle densities became higher with increasing time, while the absolute values of the electron and copper vapour densities decreased over the measurement time.

Keywords

copper; electron density; plasma density; plasma diagnostics; vacuum arcs; 2D electron density distribution; Cu; Shack-Hartmann type laser wavefront sensors; copper vapour density; decaying vacuum arc discharges; measurement time; pulsed current waveform; total particle densities; vapour density distribution; Arc discharges; Circuit breakers; Copper; Density measurement; Measurement by laser beam; Sensors; Vacuum arcs;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum (ISDEIV), 2014 International Symposium on

Conference_Location

Mumbai

Print_ISBN

978-1-4799-6750-6

Type

conf

DOI

10.1109/DEIV.2014.6961662

Filename

6961662