Self-shielding

{
  "id": "MLC-T-CHM-010715",
  "term": "Self-shielding",
  "field": "Chemistry",
  "definition": "The reduction in the effective neutron flux within a sample due to the absorption of neutrons by the sample itself. This effect is more pronounced in samples with high concentrations of neutron-absorbing nuclides or in larger samples. It can lead to an underestimation of the true concentration of an analyte in neutron activation analysis.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "flux"
  ],
  "references": [
    "PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2525 (https://doi.org/10.1351/pac199466122513)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/self-shielding/"
}