Electron inelastic mean free path

{
  "id": "MLC-T-CHM-003726",
  "term": "Electron inelastic mean free path",
  "field": "Chemistry",
  "definition": "The average distance an electron of a given energy travels in a material between successive inelastic collisions. It depends on electron energy and on the material, passing through a minimum of about 0.5 nm near 50 to 100 eV for many solids. In XPS and AES the information depth is about three times this distance.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1825 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/electron-inelastic-mean-free-path/"
}