Activity standardization of 60Co and 106Ru/106Rh by means of the TDCR method and the importance of beta spectrum - Département Métrologie Instrumentation & Information
Article Dans Une Revue Applied Radiation and Isotopes Année : 2023

Activity standardization of 60Co and 106Ru/106Rh by means of the TDCR method and the importance of beta spectrum

Résumé

Atomic and nuclear data represent an important input for the accuracy of primary activity measurements based on liquid scintillation. In particular, the reliability of β-spectrum computation has been investigated for several years through experimental and theoretical studies providing solid evidence for the need to consider the atomic effects. In the present study, the activity standardization of two β-emitting radionuclides (60Co, 106Ru/106Rh) was carried out by means of the 4πβ−γ coincidence and Triple-to-Double Coincidence Ratio (TDCR) methods. The comparison between the activity concentrations given by both primary techniques presents new evidence that a better agreement is obtained when the exchange and screening effects are included in the β-spectra implemented in the model of light emission for TDCR measurements. A new development of a stochastic model based on Geant4 simulations for TDCR calculations is also presented.
Fichier principal
Vignette du fichier
PaperLSCO28ActivityStandardization60Co106RuVerR1.pdf (629.63 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

cea-04487861 , version 1 (04-03-2024)

Identifiants

Citer

Christophe Bobin, Cheick Thiam, M.-D. M'Hayham, Xavier Mougeot. Activity standardization of 60Co and 106Ru/106Rh by means of the TDCR method and the importance of beta spectrum. Applied Radiation and Isotopes, 2023, Applied Radiation and Isotopes, 201, pp.110993. ⟨10.1016/j.apradiso.2023.110993⟩. ⟨cea-04487861⟩
99 Consultations
9 Téléchargements

Altmetric

Partager

More