| Autre titre | Primary standardization and half-life determination of 225 Ac at NRC |
|---|
| Téléchargement | - Voir la version de l’auteur : Primary standardization and half-life determination of ²²⁵ Ac at NRC (PDF, 524 Kio)
|
|---|
| DOI | Trouver le DOI : https://doi.org/10.1016/j.apradiso.2023.111105 |
|---|
| Auteur | Rechercher : Galea, R.1Identifiant ORCID : https://orcid.org/0000-0003-1639-3788; Rechercher : Moore, K.1 |
|---|
| Affiliation | - Conseil national de recherches Canada. Centre de recherche en métrologie
|
|---|
| Bailleur de fonds | Rechercher : Canadian Nuclear Laboratories |
|---|
| Format | Texte, Article |
|---|
| Sujet | ²²⁵Ac; targeted alpha therapy; half-life |
|---|
| Résumé | A solution of ²²⁵ Ac was standardized by NRC using the triple-to-double coincidence ratio (TDCR) method. The counting efficiencies were calculated assuming a counting efficiency of 100% for alpha decays and those calculated using the MICELLE2 Monte Carlo code for beta decays and was approximately 500% for the NRC TDCR system. The relative uncertainty for the activity concentration was determined to be 0.25%. This agreed with measurements performed using gamma spectroscopy and a predicted calibration factor for the Vinten 671 ionization chamber as calculated using an EGSnrc model, implementing radioactive decay. Finally, the half-life of ²²⁵ Ac was determined from long-term measurements using ionization chambers and liquid scintillation counting. The NRC measured half-life for ²²⁵ Ac was found to be 9.914(4) days and is consistent within an expanded uncertainty coverage of k = 2 with the most recent (Kossert et al., 2020; Pommé et al., 2012) measurements of this decay parameter. |
|---|
| Date de publication | 2023-11-08 |
|---|
| Maison d’édition | Elsevier |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 9aa29a95-2011-4861-a3d9-706cc9649d1f |
|---|
| Enregistrement créé | 2024-01-08 |
|---|
| Enregistrement modifié | 2024-01-10 |
|---|
