Electron gun

An electron gun is a device that generates and emits a stream of electrons, typically in a vacuum environment. It consists of several key components that work together to produce and control a focused electron beam. Electron guns are commonly used in various applications, including: 1. **Cathode Ray Tubes (CRTs)**: In traditional television sets and computer monitors, electron guns are used to direct beams of electrons onto a phosphorescent screen, creating images.