XANES - Terminology

Terminology

Both XANES and NEXAFS are acceptable terms for the same technique. The difference in usage is the energy range above the absorption edge. NEXAFS is synonymous with XANES, but NEXAFS by convention is usually reserved for soft X-ray spectroscopy (photon energy less than 1000 electron volts). NEXAFS is generally used when applied to surface and molecular science, while XANES is used in most other fields.