Liquid scintillation efficiencies, gamma-ray emission intensities, and half-life for Gd-153.
Appl Radiat Isot
; 203: 111108, 2024 Jan.
Article
em En
| MEDLINE
| ID: mdl-38000166
ABSTRACT
Gadolinium-153 was standardized for activity by live-timed anticoincidence counting and an ampoule was submitted to the international reference system (SIR). Absolute emission intensities for the main γ rays were determined with calibrated high-purity germanium (HPGe) and lithium-drifted silicon (Si(Li)) detectors. A revised decay scheme is indicated, with no probability of direct electron capture to the 153Eu ground state. Triple-to-double coincidence ratio (TDCR) efficiency curves indicate that the revised decay scheme is consistent with experiment. Half-life measurements agree with a previous NIST determination and show no sensitivity to chemical environment.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Appl Radiat Isot
Ano de publicação:
2024
Tipo de documento:
Article