Cross-Section of Compton Scattering

Compton Scattering

Compton Scattering – Cross-Sections

The probability of Compton scattering per one interaction with an atom increases linearly with atomic number Z, because it depends on the number of electrons, which are available for scattering in the target atom. The angular distribution of photons scattered from a single free electron is described by the Klein-Nishina formula:The angular distribution of photons scattered from a single free electron is described by the Klein-Nishina formulawhere ε = E0/mec2 and r0 is the “classical radius of the electron” equal to about 2.8 x 10-13 cm. The formula gives the probability of scattering a photon into the solid angle element dΩ = 2π sin Θ dΘ when the incident energy is E0.

Compton scattering experiment
The wavelength change in such scattering depends only upon the angle of scattering for a given target particle.
Source: hyperphysics.phy-astr.gsu.edu/
compton scatteringCross section of compton scattering of photons by atomic electrons..Compton scattering - Angle distributionEnergies of a photon at 500 keV and an electron after Compton scattering.

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Compton Formula

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Compton Scattering

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Compton Edge