DocumentCode
1188770
Title
Light emission of droplet spots at vacuum arc and after arc extinction
Author
Batrakov, Alexander V. ; Jüttner, Burkhard ; Proskurovsky, Dmitry I. ; Pryadko, Elena L.
Author_Institution
High Current Electron. Inst., Russian Acad. of Sci., Tomsk, Russia
Volume
33
Issue
5
fYear
2005
Firstpage
1476
Lastpage
1480
Abstract
Some droplets emitted by vacuum arc cathode spot and surrounded by dense plasma are referred to as droplet spots. The goal of this work is the study of spectral characteristics of the droplet spot light emission. The spectrum of droplets was compared with the spectrum of the cathode spot. The light emission of droplet spots after arc extinction was also studied. Non-monotonous (twinkling) glow of droplet spots was found to last for a long time (up to 1 ms) after arc extinction.
Keywords
afterglows; drops; plasma diagnostics; vacuum arcs; arc extinction; dense plasma; droplet spot light emission; spectral characteristics; twinkling glow; vacuum arc cathode spot; Arc discharges; Cathodes; Digital cameras; Gallium alloys; High speed optical techniques; Microscopy; Plasma density; Plasma measurements; Plasma temperature; Vacuum arcs; Plasma diagnostics; vacuum arcs; vacuum measurements;
fLanguage
English
Journal_Title
Plasma Science, IEEE Transactions on
Publisher
ieee
ISSN
0093-3813
Type
jour
DOI
10.1109/TPS.2005.856516
Filename
1518964
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