Excitation of Plasmons with X-rays

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Abstract
A short review is given of plasma phenomena produced in solids by impinging X-rays. The first category refers to bulk plamons due to X-ray photons scattered on solids. They are observed through the appearance of a new component in the spectrum of the scattered radiation. The energy shift increases slightly with scattering angle but eventually the dispersion stops. A second category of phenomena consists in the light emitted by decaying surface plasmons. They are excited by photoelectrons produced in colloidal materials by X-rays. The spectrum shifts with the dielectric constant of the stabilizing medium.

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