Which part of the X-ray machine generates the radiation?

The X-ray tube is the component of the X-ray machine that generates radiation. Within the tube, a high-voltage current is created between the cathode and anode, which allows electrons to be emitted and accelerated. When these high-energy electrons collide with the anode, they produce X-ray photons as a result of rapid deceleration and interaction with the anode material. This process is fundamental to the creation of X-rays, making the X-ray tube the heart of the machine in terms of radiation production.

The control panel serves as the interface for operators to set exposure factors and control the operation of the X-ray machine, but it does not generate radiation itself. The film processor is responsible for developing the radiographic film after exposure, and while the sensor captures the X-rays that pass through the patient, it is also not the source of radiation. Thus, the generation of X-rays occurs solely in the X-ray tube, affirming that this is the correct answer.