U. Köster

collaborators

3 papers

nucl-ex2026

Lifetime measurements in neutron-rich odd-A yttrium isotopes ( $^{93 - 99}$ Y): Investigation of shape coexistence and the intertwined quantum phase transition

A. Pfeil, N. Gavrielov, U. Köster +9

Lifetimes of 16 excited states in the neutron-rich odd- $A$ nuclei $^{93 - 99}$ Y were measured using fast-timing $γ$ - $γ$ coincidence spectroscopy with fast scintillation detectors at…

nucl-ex2026

Exploring $α$ - and $β$ -decay-induced quenching of the $^{229}$ Th nuclear-clock isomer in solid-state hosts

Y. Elskens, M. Athanasakis-Kaklamanakis, S. Arasada Pradeep +52

The radiative decay dynamics of an ensemble of $^{229 m}$ Th nuclei embedded in CaF $_{2}$ and MgF $_{2}$ is investigated. The isomer is populated through $β$ decay of $^{229}$ Ac…

physics.med-ph2026

Terbium-149 PET/CT: First Quantitative Imaging with a Clinical Long-Axial Field-of-View Scanner

Lorenzo Mercolli, Pascal V. Grundler, Anzhelika N. Moiseeva +4

Introduction: Terbium-149 ( $^{149}$ Tb) is a promising radionuclide for targeted $α$ therapy that has a non-zero branching ratio (BR) for positron decay. However, its relatively low…

Lifetime measurements in neutron-rich odd-A yttrium isotopes (93−99Y): Investigation of shape coexistence and the intertwined quantum phase transition

Exploring α- and β-decay-induced quenching of the 229Th nuclear-clock isomer in solid-state hosts

Terbium-149 PET/CT: First Quantitative Imaging with a Clinical Long-Axial Field-of-View Scanner

Lifetime measurements in neutron-rich odd-A yttrium isotopes ( $^{93 - 99}$ Y): Investigation of shape coexistence and the intertwined quantum phase transition

Exploring $α$ - and $β$ -decay-induced quenching of the $^{229}$ Th nuclear-clock isomer in solid-state hosts