Elastic peak electron spectroscopy

{
  "id": "MLC-T-CHM-003619",
  "term": "Elastic peak electron spectroscopy",
  "field": "Chemistry",
  "definition": "A surface-sensitive technique in which an electron spectrometer measures the elastic peak, made up of electrons scattered quasi-elastically by a solid or liquid from an incident beam with an energy of a few hundred eV up to a few keV. Because the peak's intensity varies with what the surface layer is made of, the method supplements Auger electron spectroscopy and, where electronic information is wanted, reflection electron energy loss spectroscopy (REELS). Comparing measured and calculated peak intensities gives the inelastic mean free path of the electrons in that material.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "Auger spectroscopy",
    "elastic scattering cross section",
    "electron inelastic mean free path",
    "electron spectrometer"
  ],
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1783 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/elastic-peak-electron-spectroscopy/"
}