Basics of X-ray Physics
Tutorial conclusion

Key points

  • X-rays are produced de novo when needed
  • No radioactive substance is used
  • X-rays travel in straight lines and are attenuated by body tissues according to density and thickness of those tissues
  • X-rays are potentially hazardous
  • Hospital staff have a duty to use X-rays responsibly

Having a basic knowledge of radiation physics and safety is helpful in appreciating some of the limitations of X-ray investigations. The science of radiographics deal with understanding and overcoming some of these difficulties.