Vacuum arc
id:
vacuum-arc-298-16346212
title:
Vacuum arc
text:
A vacuum arc can arise when the surfaces of metal electrodes in contact with a good vacuum begin to emit electrons either through heating or in an electric field that is sufficient to cause field electron emission. Once initiated, a vacuum arc can persist, since the freed particles gain kinetic energy from the electric field, heating the metal surfaces through high-speed particle collisions. This process can create an incandescent cathode spot, which frees more particles, thereby sustaining the
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Vacuum_arc
date created:
date modified:
2024-01-03T09:52:25Z
main entity:
{"identifier":"Q4102677","url":"https://www.wikidata.org/entity/Q4102677"}
image:
fields total:
13
integrity:
13