Macroscopic cross-section

{
  "id": "MLC-T-CHM-006891",
  "term": "Macroscopic cross-section",
  "field": "Chemistry",
  "definition": "A measure of the probability per unit path length that a specific nuclear reaction or interaction will occur within a material. It is calculated by multiplying the microscopic cross-section of a nuclide by the number density of that nuclide in the material. This quantity has units of inverse length, typically cm⁻¹, and is used in nuclear engineering and radioanalytical chemistry.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "microscopic cross-section",
    "nuclide"
  ],
  "references": [
    "Orange Book, 2nd ed., p. 218 (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/macroscopic-cross-section/"
}