X-Ray Radiography

X-Ray Sources | | Attenuation Coefficient

When X-raying an object or body, the electromagnetic waves are attenuated while traveling though the body on a straight line. The attenuation is caused by scattering and absorption effects. With good approximation, the attenutation is proportional to the density (resp. weight) of the X-rayed material.

The following physical processes are involved:

  • Elastic scattering
  • Photoelectrical effect
  • Compton Scattering
  • Pairing
Ohm-Hand Courtesy of Stefan Röttger, Ohm Hochschule
EZRT-Bagger Courtesy of Fraunhofer EZRT

X-Ray Sources | | Attenuation Coefficient