Title :
Cathode erosion rates in vacuum-arc discharges
Author :
Brown, Ian G. ; Shiraishi, Hiroshi
Author_Institution :
Lawrence Berkeley Lab., California Univ., CA, USA
fDate :
2/1/1990 12:00:00 AM
Abstract :
Erosion rates of metal-vapor vacuum-arc cathode materials have been measured for a number of different cathode elements. The measured rates are compared with the rates predicted by a simple estimate based on the known ion generation rates. The agreement is good for the more refractory metals. For the low boiling-point metals there is evidence for an additional mass loss, as, for example, might be associated with an intense macroparticle generation
Keywords :
arcs (electric); cathodes; plasma-wall interactions; wear; cathode materials; erosion rates; intense macroparticle generation; ion generation rates; low boiling-point metals; metal vapour vacuum arc discharge; refractory metals; Arc discharges; Cathodes; Cyclotrons; Electrodes; Electron beams; Frequency estimation; Magnetic fields; Plasma density; Plasma measurements; Vacuum arcs;
Journal_Title :
Plasma Science, IEEE Transactions on
