出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/06/12 18:45 UTC 版)
An electron gun (also called electron emitter) is an electrical component that produces an electron beam that has a precise kinetic energy and is most often used in televisions and monitors which use cathode ray tube technology, as well as in other instruments, such as electron microscopes and particle accelerators. Electron guns may be classified in several ways: