Compton scattering

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Compton scattering

(komp -tŏn) (Compton effect) An interaction between a photon of electromagnetic radiation and a charged particle, such as an electron, in which some of the photon's energy is given to the particle. The photon is therefore reradiated at a lower frequency (i.e. with a lower energy) and the particle's energy is increased. In inverse Compton emission the reverse process takes place: photons of low frequency are scattered by moving charged particles and reradiated at a higher frequency.

Compton scattering

[¦käm·tən ¦skad·ə·riŋ]
(quantum mechanics)
The elastic scattering of photons by electrons. Also known as Compton process; gamma-ray scattering.