What Is a Radiograph?
A radiograph is an image taken with X-ray technology that allows the inside of an object to be seen. X-rays, also called X radiation or Roentgen radiation, are a type of electromagnetic radiation with a very short wavelength. The radiation with the shortest wavelengths, hard X-rays, are powerful enough to penetrate objects, making them a useful tool for security screening, medical diagnostics, and looking at the inside of crystals. The radiograph is a two dimensional picture of objects in shades of white on a black background. A radiograph is produced by beaming hard X-rays through the subject, whose insides absorb different amounts of radiation depending on the densities of its components. In an X-ray image of the body, bones, which are dense, absorb more radiation than soft tissues, which are less dense. This absorption of radiation is called attenuation. Where more radiation is attenuated, less radiation is able to pass through to the other side of the object. Where there is less at
