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X-rays are used to investigate the structural properties of solids, liquids or gels. Photons interact with electrons, and provide information about the fluctuations of electronic densities in heterogeneous matter. A typical experimental set-up is shown on Figure : a monochromatic beam of incident wave vector is selected and falls on the sample. The scattered intensity is collected as a function of the so-called scattering angle 2 teta.

SWAXS Lab -Saclay : The SAXS/ GISAXS/ X-ray reflectomer beamline

Diffusion des Rayons X aux petits angles / Small Angle X-Rays Scattering (SAXS)


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