Useful Beam refers to X-rays that are intentionally directed towards the patient or the area of interest, while Scatter Radiation refers to X-rays exiting the tube housing of an x-ray tube in all directions.
False. Useful Beam refers to X-rays that are useful for imaging purposes and are intentionally directed towards the patient or the area of interest. X-rays exiting the tube housing of an x-ray tube in all directions are called Scatter Radiation, which is unwanted and can be harmful.