In X-ray filtration, what is the main function?

The primary function of X-ray filtration is to remove low-energy X-rays from the beam. Low-energy X-rays do not contribute to the diagnostic quality of the images but instead increase patient exposure to radiation without providing useful information. By filtering these low-energy components, the quality of the X-ray image is enhanced, and the radiation dose to the patient is minimized. This leads to more effective imaging while prioritizing patient safety and reducing unnecessary exposure to radiation.

Other options, while potentially relevant to the overall X-ray process, do not accurately describe the core purpose of filtration. For example, reducing exposure time is related to adjusting settings on the X-ray machine rather than filtering. Similarly, reducing the size of the beam pertains to collimation rather than filtration. Preparing film for developing is relevant to the handling of the radiographic film and is not a function of X-ray filtration.