What type of rectifier is used in modern x-ray equipment?

In modern x-ray equipment, diodes are the primary type of rectifier used. Diodes function by allowing current to flow in one direction while blocking it in the opposite direction. This property is essential in converting alternating current (AC) into direct current (DC), which is necessary for creating stable and consistent x-ray images.

The use of diodes in modern radiography enhances the efficiency and reliability of the x-ray circuits. They are compact, solid-state devices that can handle high voltages and are more durable compared to older rectifying technologies. The advancements in diode technology also contribute to improvements in image quality and reduced radiation dose for patients.

Other options, such as transformers, capacitors, and vacuum tubes, serve different roles in x-ray equipment. Transformers are used primarily to increase or decrease voltage. Capacitors store and smooth out electrical currents but are not responsible for rectification. Vacuum tubes, while historically significant in electronics, especially in early radiography, have largely been replaced by diodes in modern practice due to their size, heat production, and inefficiency.