Interaction With Matter
X-rays interact with matter in three main ways, through photoabsorption, Compton scattering, and Rayleigh scattering. The strength of these interactions depend on the energy of the X-rays and the elemental composition of the material, but not much on chemical properties since the X-ray photon energy is much higher than chemical binding energies. Photoabsorption or photoelectric absorpiton is the dominant interaction mechanism in the soft X-ray regime and for the lower hard X-ray energies. At higher energies the compton effect dominates.
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