What term describes radiation that exits the opposite side of the patient to expose the image receptor?

Remnant radiation refers to the radiation that passes through the patient's body and then exits to reach the image receptor on the opposite side. This type of radiation is essential for producing the diagnostic image because it contains the information needed to create a visual representation of the internal structures of the body.

Primary radiation is the initial beam that is emitted from the x-ray tube before it interacts with any matter, while scattered radiation results from the interaction of primary radiation with tissues, changing its direction and energy. Background radiation is the natural environmental radiation that is always present but is not related to the specific x-ray imaging process. Therefore, remnant radiation is the correct term to describe the radiation that contributes to the formation of the image after having passed through the patient.