There are many excellent websites with accurate information on radiation and safety — some are specific to medical imaging; others are more general but are also useful for the medical imaging professional.
Image Wisely is a joint initiative of the American College of Radiology, Radiological Society of North America, American Society of Radiological Technologists and American Association of Physicists in Medicine.
Ionizing radiation is used to create many of the images necessary for the detection, diagnosis and management of injury and disease today. The articles and resources below discuss radiation safety topics applicable to all imaging modalities. Also be sure to take the pledge to Image Wisely!