Microscopic cross-section

{
  "id": "MLC-T-CHM-007355",
  "term": "Microscopic cross-section",
  "field": "Chemistry",
  "definition": "A measure of the probability that a single nucleus will undergo a specific nuclear reaction when exposed to a beam of particles. It represents the effective area presented by an individual nucleus to an incoming particle for a particular interaction. This quantity is expressed in units of barns (b), where 1 barn equals 10^-28 square meters.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "energy",
    "nuclear fission",
    "flux",
    "macroscopic cross-section",
    "neutron",
    "probability",
    "scattering"
  ],
  "references": [
    "Orange Book, 2nd ed., p. 217 (https://media.iupac.org/publications/analytical_compendium/)",
    "PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2517 (https://doi.org/10.1351/pac199466122513)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/microscopic-cross-section/"
}