Beam footprint

{
  "id": "MLC-T-CHM-001165",
  "term": "Beam footprint",
  "field": "Chemistry",
  "definition": "The area on a sample surface that is illuminated or irradiated by an incident beam of radiation or particles during an analytical measurement. This area defines the spatial extent from which analytical information is collected. Its size and shape depend on the beam's characteristics and the angle of incidence.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "X-ray reflectometry"
  ],
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1847 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/beam-footprint/"
}