Current density on the cathode of high current vacuum arc stabilized by axial magnetic field

Author

Chaly, A.M. ; Logatchev, A.A. ; Shkol´nik, S.M. ; Zabello, K.K.

Author_Institution

Tavrida Electr. Ltd., Moscow, Russia

Volume

1

fYear

2000

fDate

2000

Firstpage

286

Abstract

Current density distribution over the cathode of high-current vacuum arc (HCVA) stabilized by axial magnetic field (AMF) was analyzed and mean values were found. Results obtained proved previously discovered phenomenon of normal current density in cathode root of HCVA stabilized by AMF to be of general phenomenon under changes of arc parameters in a wide range. This normal current density depends on AMF intensity and on arc length, and does not depend on current. It was also discovered that inside the cathode arc root, cathode spots form a characteristic structure

Keywords

cathodes; current density; magnetic fields; vacuum arcs; arc length; arc parameters; axial magnetic field; cathode arc root; cathode current density; cathode spots; current density distribution; high current vacuum arc stabilization; Anodes; Cathodes; Current density; Electrodes; Magnetic fields; Plasma applications; Plasma materials processing; Plasma properties; Plasma temperature; Vacuum arcs;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 2000. Proceedings. ISDEIV. XIXth International Symposium on

Conference_Location

Xi´an

Print_ISBN

0-7803-5791-4

Type

conf

DOI

10.1109/DEIV.2000.877305

Filename

877305