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Activity standard and calibrations for 227Th with ingrowing progeny.
Bergeron, Denis E; Cessna, Jeffrey T; Broder, Brittany A; Pibida, Leticia; Fitzgerald, Ryan P; DiGiorgio, Morgan; Napoli, Elisa; Zimmerman, Brian E.
Afiliação
  • Bergeron DE; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA. Electronic address: denis.bergeron@nist.gov.
  • Cessna JT; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
  • Broder BA; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
  • Pibida L; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
  • Fitzgerald RP; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
  • DiGiorgio M; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
  • Napoli E; Bayer Pharmaceuticals, Oslo, Norway.
  • Zimmerman BE; Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
Appl Radiat Isot ; 209: 111326, 2024 Jul.
Article em En | MEDLINE | ID: mdl-38701595
ABSTRACT
Thorium-227 was separated from its progeny and standardized for activity by the triple-to-double coincidence ratio (TDCR) method of liquid scintillation counting. Confirmatory liquid scintillation-based measurements were made using efficiency tracing with 3H and live-timed anticoincidence counting (LTAC). The separation time and the efficiency of the separation were confirmed by gamma-ray spectrometry. Calibrations for reentrant pressurized ionization chambers, including commercial radionuclide calibrators, and a well-type NaI(Tl) detector are discussed.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Appl Radiat Isot Ano de publicação: 2024 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Appl Radiat Isot Ano de publicação: 2024 Tipo de documento: Article