Near Edge X-ray Absorption Fine Structure

 

NEXAFS (Near Edge X-ray Absorption Fine Structure) is an element-specific electron spectroscopic technique which is highly sensitive to bond angles, bond lengths and the presence of adsorbates. It is widely used in surface science and has also been used to study polymers and magnetic materials. NEXAFS is synonymous with XANES (X-ray Absorption Near Edge Structure) but NEXAFS by convention is usually reserved for soft X-ray spectroscopy (photon energy less than 1000 electron volts). NEXAFS is distinguished from the closely related EXAFS method in that NEXAFS concentrates on fine structure within about 30 ev of the absorption edge while EXAFS considers the extended spectrum out to much higher electron kinetic energies.

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Method that uses measurement of the energies of photons and electrons emitted from matter following irradiation with x-ray photons, which themselves have energies close to the absorption edge of the material, to derive structural information about the irradiated material

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Method that uses measurement of the energies of photons and electrons emitted from matter following irradiation with x-ray photons, which themselves have energies close to the absorption edge of the material, to derive structural information about the irradiated material

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