Journal article
Activity standardisation of 161Tb.
- Nedjadi Y Institut de Radiophysique, Lausanne, Switzerland. Electronic address: youcef.nedjadi@chuv.ch.
- Juget F Institut de Radiophysique, Lausanne, Switzerland.
- Desorgher L Institut de Radiophysique, Lausanne, Switzerland.
- Durán MT Institut de Radiophysique, Lausanne, Switzerland.
- Bochud F Institut de Radiophysique, Lausanne, Switzerland.
- Müller C Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, Villigen-PSI, Switzerland.
- Talip Z Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, Villigen-PSI, Switzerland.
- van der Meulen NP Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, Villigen-PSI, Switzerland; Laboratory of Radiochemistry, Paul Scherrer Institute, Villigen-PSI, Switzerland.
- Bailat C Institut de Radiophysique, Lausanne, Switzerland.
- 2020-09-22
Published in:
- Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. - 2020
(160)Tb
(161)Tb
4πβ-γ coincidence counting
Activity standardisation
Liquid scintillation
Plastic scintillation
TDCR
English
161Tb, which emits low-energy β-- and γ-particles in addition to conversion and Auger electrons, has aroused increased interest for medical imaging and therapy. To support the use of this radionuclide, a161Tb solution was standardised using the β-γ coincidence technique, as well as the TDCR method. The solution had 4.5·10-3% of 160Tb impurities. Primary coincidence measurements, with plastic or liquid scintillators for beta detection, were carried out using both analogue and digital electronics. TDCR measurements using defocusing, grey filtering and quenching for varying the efficiency were also made. Monte Carlo calculations were used to compute the detection efficiency. The coincidence measurements with analogue electronics and the TDCR show a good consistency, and are compatible with the digital coincidence results within uncertainties. An ampoule of this solution was submitted to the BIPM as a contribution to the international reference system.
- Language
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- English
- Open access status
- closed
- Identifiers
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- DOI 10.1016/j.apradiso.2020.109411
- PMID 32961523
- Persistent URL
- https://sonar.ch/global/documents/185307
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