Title :
Dense plasma cluster formation around drop in vacuum discharge cathode plasma
Author_Institution :
Inst. of High Current Electron., Acad. of Sci., Tomsk, Russia
Abstract :
The subject of investigation described in the paper is a set of droplets flying away from the cathode and their own dense plasma surrounding them. Plasma parameters of the formed clusters were measured. It has been suggested that the mechanism of plasma cluster formation consists in intensive heating, evaporation, and ionization of the droplet material. Herewith, the key factor increasing the heating flow from surrounding plasma to droplet is electron emission originating from the droplet surface.
Keywords :
cathodes; drops; evaporation; ionisation; light interferometry; plasma diagnostics; plasma production; vacuum arcs; dense plasma cluster formation; droplet surface; droplets; electron emission; evaporation; heating flow; intensive heating; ionization; long-distance QUESTAR QM-100 microscope; plasma parameters measurement; resonance laser diagnostics; subnanosecond laser interferometry; ultrahigh-speed IMACON-468 camera; vacuum discharge cathode plasma; vapor density measurements; Cathodes; Fault location; Heating; Plasma density; Plasma materials processing; Plasma measurements; Plasma sources; Production; Surface discharges; Vacuum arcs;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN :
0-7803-7394-4
DOI :
10.1109/ISDEIV.2002.1027389
