High Quality Content by WIKIPEDIA articles! X-ray Absorption Near Edge Structure (XANES) is a type of absorption spectroscopy. XANES data indicate the absorption peaks due to the photoabsorption cross section in the X-ray Absorption Spectra (XAS) observed in the energy region, extending over a range of about 100 eV, between the edge region and the EXAFS region. Here the XANES spectroscopy and its applications in these last 26 years is described. XANES is also known as NEXAFS (Near Edge X-ray Absorption Fine Structure) when applied to surface and molecular science and it is described elsewhere. XANES has to be distinguished from edge and EXAFS spectroscopy. The first difference concerns the energy range above the absorption edge.

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