Which method is used to improve the quality of x-ray images during exposure?

Using a higher kilovoltage peak (kVp) setting during x-ray exposure enhances the quality of the x-ray images primarily by increasing the energy of the x-rays produced. Higher kVp results in x-rays with greater penetrating power, which allows them to better penetrate the tissues being imaged. This improved penetration leads to a more comprehensive representation of the anatomical structures, resulting in clearer images with greater contrast and detail.

Furthermore, increasing the kVp can reduce the amount of radiation needed for exposure while maintaining image quality. This reduction is important for minimizing the patient's radiation dose, which is a key consideration in radiographic practice. Higher energy x-rays are also less likely to be absorbed by the tissues, allowing for a clearer distinction between various types of tissues and improving the diagnostic value of the images.

When considering the other methods, it's important to note that increasing exposure time does not necessarily improve image quality; it may lead to motion blur or increased dose without enhancing contrast. Decreasing the distance from the patient can magnify the images and distort anatomical relationships, potentially compromising image quality. Finally, using less added filtration can result in a greater number of low-energy photons which do not contribute to image formation, thereby degrading image quality. Thus, selecting a higher kVp