marara Compton

Compton scattering

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From Wikipedia... Compton scattering

Scattering of photons off charged particles

Compton scattering is the quantum theory of scattering of a high-frequency photon through an interaction with a charged particle, usually an electron. Specifically, when the photon interacts with a loosely bound electron, it releases the electron from an outer valence shell of an atom or molecule.