6533b853fe1ef96bd12acafb

RESEARCH PRODUCT

Numerical expressions for the computation of coincidence-summing correction factors in γ-ray spectrometry with HPGe detectors

Elio Angelo TomarchioSalvatore Rizzo

subject

RadiationDecay schemeComputer programSettore ING-IND/20 - Misure E Strumentazione NucleariComputationTransducersMatrix representationAnalytical chemistryReproducibility of ResultsEquipment DesignRadiation DosageCoincidence-summingSensitivity and SpecificitySample (graphics)CoincidenceComputational physicsEquipment Failure AnalysisSpectrometry GammaPoint (geometry)g-Ray spectrometryArtifactsRadiometryHpge detectorAlgorithmsMathematics

description

Numerical expressions to compute gamma-gamma and gamma-X(K) coincidence summing corrections were deduced by using a suitable computer program and a matrix representation of a decay scheme. For point sources only full-energy peak and total efficiencies are needed. Alternatively, values of peak-to-total ratio can be introduced. For extended sources, the same expressions can be considered with the introduction of "effective efficiencies". Examples of the use of the expressions for point sources and a particulate filter sample measured with a 60% relative efficiency HPGe detector are reported.

yearjournalcountryeditionlanguage
2009-11-07Applied Radiation and Isotopes
https://doi.org/10.1016/j.apradiso.2009.10.024