Analysis of elementary processes leading to surface flashover in vacuum

Author

Nevrovsky, V.A.

Author_Institution

Moscow State Univ., Russia

Volume

1

fYear

1998

fDate

17-21 Aug 1998

Firstpage

159

Abstract

The paper presents a survey and analysis of preflashover processes at the solid-vacuum interface (including field emission) from a triple point at a cathode and surface charge build-up along the total length of a dielectric (and especially immediately near the emission source) due to secondary electron emission resulting in field intensification near the triple point. The possibility of large intensification of the electric field near a triple point and its relation to the surface flashover are also discussed

Keywords

cathodes; electric fields; electron field emission; flashover; insulators; secondary electron emission; surface discharges; vacuum breakdown; vacuum insulation; cathode triple point; electric field intensification; elementary processes; field emission; insulator surface flashover; preflashover processes; secondary electron emission; solid-vacuum interface; surface charge build-up; vacuum; Cathodes; Conducting materials; Dielectric materials; Dielectrics and electrical insulation; Electron emission; Flashover; Hydrocarbons; Hydrogen; Ionization; Resistance heating;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 1998. Proceedings ISDEIV. XVIIIth International Symposium on

Conference_Location

Eindhoven

ISSN

1093-2941

Print_ISBN

0-7803-3953-3

Type

conf

DOI

10.1109/DEIV.1998.740598

Filename

740598