What type of radiation is not intended for patient exposure during radiographic procedures?

Leakage radiation is radiation that escapes from the confines of the x-ray tube or collimator and is not intended for patient exposure during radiographic procedures. This type of radiation can occur due to imperfections in the shielding materials used in x-ray apparatus. Leakage radiation is classified as stray radiation and is a safety concern, as it can expose both patients and healthcare workers unnecessarily.

In contrast, primary radiation refers to the radiation that is directed toward the patient and is used to create diagnostic images. The useful beam is the part of the radiation beam that has been appropriately collimated to produce the desired x-ray image, while filtered radiation involves the process of removing low-energy photons from the beam, which also serves to reduce patient exposure and improve image quality. None of these options are associated with unwanted exposure, unlike leakage radiation, which occurs outside the intended path of the radiation beam.