Title :
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
fDate :
Sept. 28 2014-Oct. 3 2014
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;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum (ISDEIV), 2014 International Symposium on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4799-6750-6
DOI :
10.1109/DEIV.2014.6961662
