Title :
Dynamics of cathode spots on the beryllium in vacuum arc discharges
Author :
Ivanov, V.A. ; Jüttner, B. ; Zimin, A.M.
Author_Institution :
Gen. Phys. Inst., Acad. of Sci., Moscow, Russia
Abstract :
Two types of cathode spots, differing greatly in velocity at which they move along the cathode surface of a beryllium at a current of 60 A in a high vacuum arc discharge were discovered Cathode spots of the first type, which arise at a beryllium surface with an oxide film, move at velocities up to 500 m/s, while the velocity of cathode spots of the second type, which arise at a pure beryllium surface, is up to 5 m/s.
Keywords :
beryllium; cathodes; vacuum arcs; 5 m/s; 500 m/s; 60 A; Be; beryllium surface; cathode spot velocity; cathode spots dynamics; high vacuum arc discharge; oxide film; Anodes; Arc discharges; Cathodes; Charge coupled devices; Charge-coupled image sensors; Current measurement; Luminescence; Surface discharges; Vacuum arcs; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN :
0-7803-7394-4
DOI :
10.1109/ISDEIV.2002.1027327
