What role does filtration play in radiography?

Filtration in radiography serves a crucial function in reducing patient dose by selectively eliminating low-energy X-rays from the beam. These low-energy X-rays contribute minimally to image formation but significantly increase the radiation exposure to the patient. By using filters made of materials such as aluminum, the radiographic system can attenuate these less penetrating rays while allowing higher-energy rays to pass through.

This process improves the overall quality of the diagnostic image, as it enhances the contrast and information captured while ensuring that the patient receives a lower dose of radiation. Therefore, effective filtration is integral to optimizing patient safety without compromising the diagnostic quality of the radiographic images.