SAXS ou Small-Angle X-Ray Scattering est une technique permettant de caractériser la morphologie de matériaux à des échelles allant grosso modo de 1 nm à 100 nm. Dans le cas de matériaux particulaires, cette caractérisation peut consister en la mesure de la taille des particules.
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Small-angle X-ray scattering — (SAXS) is a small angle scattering (SAS) technique where the elastic scattering of X rays (wavelength 0.1 ... 0.2 nm) by a sample which has inhomogeneities in the nm range, is recorded at very low angles (typically 0.1 10°). This angular range… … Wikipedia
Grazing-incidence small-angle X-ray scattering — (GISAXS) is a scattering technique most commonly done at synchrotron radiation facilities. A related technique also exists for neutron scattering (GISANS). 300px|thumb|right|Scheme 1: GISAXS scattering geometry. The incident beam strikes the… … Wikipedia
Wide angle X-ray scattering — (WAXS) or Wide angle X ray diffraction (WAXD) is an X ray diffraction technique that is often used to determine the crystalline structure of polymers. This technique specifically refers to the analysis of Bragg Peaks scattered to wide angles,… … Wikipedia
Small-angle neutron scattering — (SANS) is a laboratory technique, similar to the often complementary techniques of small angle X ray scattering (SAXS) and light scattering. These are particularly useful because of the dramatic increase in forward scattering that occurs at phase … Wikipedia
Small-angle scattering — (SAS) is a scattering technique based on the deflection of a beam of particles, or an electromagnetic or acoustic wave, away from the straight trajectory after it interacts with structures that are much larger than the wavelength of the radiation … Wikipedia
Biological small-angle scattering — Small angle scattering is a fundamental method for structure analysis of materials, including biological materials. Small angle scattering allows one to study the structure of a variety of objects such as solutions of biological macromolecules,… … Wikipedia
X-ray scattering techniques — are a family of non destructive analytical techniques which reveal information about the crystallographic structure, chemical composition, and physical properties of materials and thin films. These techniques are based on observing the scattered… … Wikipedia
X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… … Wikipedia
Scattering — is a general physical process where some forms of radiation, such as light, sound, or moving particles, are forced to deviate from a straight trajectory by one or more localized non uniformities in the medium through which they pass. In… … Wikipedia
Ray (optics) — Ray of light redirects here. For other uses, see Ray of light (disambiguation). In optics, a ray is an idealized narrow beam of light. Rays are used to model the propagation of light through an optical system, by dividing the real light field up… … Wikipedia
