Uncertainty and covariance matrix of the coincidence-summing correction factors due to decay-data uncertainties.

Appl Radiat Isot

Physics Department, University of Bucharest, 405 Atomistilor Str, P.O. Box MG-11, Magurele, Ilfov, RO-077125, Romania; National Institute of R&D for Physics and Nuclear Engineering-Horia Hulubei (IFIN-HH), ELI-NP, Bucharest-Magurele, P.O. Box MG-6, RO-077125, Romania. Electronic address:

Published: December 2023

The uncertainty component of high efficiency gamma-ray spectrometry measurements due to the uncertainty of the decay parameters is evaluated. It is based on the analysis of a large set of random decay schemes, constructed using the values and uncertainties of the decay parameters taken from data libraries. The distributions of the coincidence-summing correction factors F, of the factors p⋅F (p = photon emission intensity), and of the correlations between the distribution of pairs of these factors are constructed and analysed.

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Source
http://dx.doi.org/10.1016/j.apradiso.2023.111057DOI Listing

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