Which component of the X-ray tube produces electrons?

The component of the X-ray tube that produces electrons is the cathode. The cathode is composed of a filament and a focusing cup. When the filament is heated, it undergoes a process called thermionic emission, which causes it to release electrons. These electrons are then focused into a beam and directed toward the anode, where they interact to produce X-rays.

In the context of the X-ray tube, the cathode is essential for generating the electrons needed for the X-ray production process. Once the electrons are propelled toward the anode, they collide with it, resulting in the generation of X-ray photons. The role of the cathode is crucial as it initiates the entire process of X-ray generation by providing the necessary electrons.