X-ray linewidth

{
  "id": "MLC-T-CHM-012763",
  "term": "X-ray linewidth",
  "field": "Chemistry",
  "definition": "The full width at half maximum (FWHM) of an X-ray emission or absorption peak in a spectrum. It reflects the natural lifetime broadening of the electronic states involved in the X-ray transition, as well as instrumental broadening effects. The linewidth provides information about the electronic structure and chemical environment of the emitting or absorbing atom.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1819 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/x-ray-linewidth/"
}