Which part of the x-ray machine helps to remove heat?

The correct choice is the copper stem and radiator because they play a critical role in dissipating heat produced during the x-ray generation process. When x-rays are generated, a significant amount of energy is converted into heat, particularly in the anode where electrons collide. The copper stem is an efficient conductor that channels this heat away from the anode, while the radiator facilitates the cooling process by providing a larger surface area for heat dissipation into the surrounding environment.

This cooling mechanism is essential for maintaining the performance and longevity of the x-ray machine, as excessive heat can lead to damage or reduced function of the components. By efficiently removing heat, the copper stem and radiator help ensure that the machine can operate effectively and produce high-quality images without overheating.