= Non-linear inverse Compton scattering
{wiki=Non-linear_inverse_Compton_scattering}
Non-linear inverse Compton scattering (NICS) refers to a physical process in which photons gain energy through collisions with charged particles, typically electrons. This is an extension of the more familiar linear inverse Compton scattering, where a low-energy photon is scattered by a relativistic electron, resulting in a higher-energy photon. In the linear case, the energy increase of the photon is directly proportional to the initial energy of the photon and depends on the relative energies and angles of the incoming photon and electron.
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