Source: wikibot/wehnelt-cylinder
= Wehnelt cylinder
{wiki=Wehnelt_cylinder}
A Wehnelt cylinder is a component used in electron guns, which are devices that generate and control electron beams. Named after the German physicist Walter Wehnelt, the Wehnelt cylinder serves as a part of the electron gun assembly, typically found in cathode ray tubes (CRTs), electron microscopes, and other applications requiring focused electron beams.