Pile-up

{
  "id": "MLC-T-CHM-008970",
  "term": "Pile-up",
  "field": "Chemistry",
  "definition": "An artifact in radiation detection where two or more closely spaced radiation events are registered as a single, higher-energy event by the detector. This occurs when the time interval between successive events is shorter than the detector's processing time. It can lead to distortion of energy spectra and inaccurate counting rates.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "radiation detector",
    "spectrometer"
  ],
  "references": [
    "Orange Book, 2nd ed., p. 235 (https://media.iupac.org/publications/analytical_compendium/)",
    "PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2523 (https://doi.org/10.1351/pac199466122513)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/pile-up/"
}