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β- and α-decay spectroscopy of Au182
/ ISOLDE Decay Station Collaboration
An α- and β-decay study of a pure source of laser-ionized and mass-separated Au182 (Z = 79, N = 103) was carried out at the ISOLDE Decay Station at the ISOLDE-CERN facility. Detailed γ-γ analysis following EC/β+ decay of Au182 was performed, and the level scheme of daughter nuclide Pt182 was considerably extended via the identification of 125 new levels and 336 new γ-ray transitions. [...]
2025 - 16 p.
- Published in : Phys. Rev. C 112 (2025) 024328
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Laser spectroscopy and CP-violation sensitivity of actinium monofluoride
/ Athanasakis-Kaklamanakis, M. (CERN ; Leuven U. ; Imperial Coll., London) ; Au, M. (CERN ; Mainz U.) ; Kyuberis, A. (Groningen U.) ; Zulch, C. (Philipps U. Marburg) ; Gaul, K. (Philipps U. Marburg ; Helmholtz Inst., Mainz ; Darmstadt, GSI ; Mainz U., Inst. Phys.) ; Wibowo, H. (York U., England) ; Skripnikov, L. (Unlisted) ; Lalanne, L. (Leuven U. ; CERN) ; Reilly, J.R. (Manchester U. ; CERN) ; Koszorus, A. (CERN ; Leuven U.) et al.
The apparent invariance of the strong nuclear force under combined charge conjugation and parity (CP) remains an open question in modern physics. [...]
arXiv:2507.05224.
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43.
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Quantification of trace $^{227}$Ac and other radionuclidic impurities in mass-separated $^{225}$Ac samples produced at CERN-MEDICIS
/ Johnson, Jake D (Leuven U.) ; Bernerd, Cyril (Leuven U. ; CERN) ; Bruchertseifer, Frank (Unlisted, DE) ; Cocolios, Thomas E (Leuven U.) ; Deseyn, Marie (Leuven U.) ; Duchemin, Charlotte (Leuven U. ; CERN) ; Heines, Michael (Leuven U.) ; Keppens, Max (Leuven U.) ; Lambert, Laura (CERN) ; Meurrens, Nathan (Leuven U.) et al.
$^{225}$Ac is a promising candidate medical radionuclide for targeted alpha therapy of advanced stage cancers. One of the main production pathways is the high-energy proton spallation of thorium-based targets, that requires an efficient, nuclide-selective separation method to recover $^{225}$Ac from hundreds of co-produced spallation and fission products. [...]
2025 - 14 p.
- Published in : Sci. Rep. 15 (2025) 23563
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Variations in the charge radii of indium isotopes between $N$ = 52 and 82
/ CRIS-ISOLDE Collaboration
Measurements of the 5$\mathrm{p}$ $^2P_{3/2}$ $\to$ $9_s$ $^2 S_{1/2}$ and 5$\mathrm{p}$ $^2P_{1/2}$ $\to$ $8_s$ $^2 S_{1/2}$ transitions in the indium atom, combined with new atomic physics calculations, were used to extract the changes in mean-square nuclear charge radii, $\delta$($r^2$), of the indium (Z = 49) isotopes $^{101-111}$In, $^{113-123}$In, and $^{125-131}$In. With a proton hole in the closed nuclear shell of Z = 50, indium provides a detailed study of the effect of unpaired nucleons adjacent to the proton-shell closure, allowing investigation into the charge radii for isotopes between the two major neutron-shell closures at N = 50 and N = 82. [...]
2025 - 10 p.
- Published in : Phys. Rev. C 111 (2025) 064325
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New upper limits for β-delayed fission probabilities of Fr230,232 and Ac230,232,234
/ Bara, S (Leuven U.) ; Algora, A (Valencia U., IFIC) ; Andel, B (Comenius U.) ; Andreyev, A N (York U., England) ; Antalic, S (Comenius U.) ; Bark, R A (iThemba LABS) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Camaiani, A (Leuven U. ; INFN, Florence ; U. Florence (main)) ; Cocolios, T E (Leuven U.) ; Cubiss, J G (Edinburgh U. ; York U., England) et al.
The process of β-delayed fission (βDF) of Fr230,232 and Ac230,232,234 was studied in an experiment performed at the ISOLDE facility at CERN. As no fission fragments were observed for any of the nuclei investigated, upper limits for their βDF probability (PβDF) were determined. [...]
2025 - 11 p.
- Published in : Phys. Rev. C 111 (2025) 065803
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Novel radionuclides: demand, production and distribution for translational research in Europe
/ Radzina, Maija (CERN ; Latvia U.) ; Saule, Laura (Latvia U.) ; Mamis, Edgars (CERN ; Latvia U.) ; Pajuste, Elina (Latvia U.) ; Koester, Ulli (Laue-Langevin Inst.) ; Cocolios, Thomas Elias (Leuven U.) ; Proskurins, Jevgenijs (Unlisted, LV) ; Kalnina, Patricija (Latvia U.) ; Zabolockis, Rudolfs Janis (Latvia U.) ; Palskis, Kristaps (CERN ; Latvia U.) et al.
Background: In the feld of medical and scientifc research, radionuclides are used to investigate various physiological and pathological processes. PRISMAP - the European medical radionuclide programme was created to bring together production facilities including intense neutron sources, an isotope mass separation facility, highpower accelerators, biomedical research institutes, and hospitals to support medical research [...]
2024 - 16 p.
- Published in : EJNMMI Radiopharmacy and Chemistry 9 (2024) 85
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Terbium radionuclides for theranostic applications in nuclear medicine: from atom to bedside
/ Van Laere, Camille (SCK-CEN, Mol ; Leuven U.) ; Koole, Michel (Leuven U.) ; Deroose, Christophe M (Leuven U.) ; de Voorde, Michiel Van (SCK-CEN, Mol) ; Baete, Kristof (Leuven U.) ; Cocolios, Thomas E (Leuven U.) ; Duchemin, Charlotte (CERN) ; Ooms, Maarten (SCK-CEN, Mol) ; Cleeren, Frederik (Leuven U.)
Terbium features four clinically interesting radionuclides for application in nuclear medicine: terbium-149, terbium-152, terbium-155, and terbium-161. Their identical chemical properties enable the synthesis of radiopharmaceuticals with the same pharmacokinetic character, while their distinctive decay characteristics make them valuable for both imaging and therapeutic applications. [...]
2024 - 24 p.
- Published in : Theranostics 14 (2024) 1720-1743
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Reduction in nuclear size and quadrupole deformation of high-spin isomers of $^{127,129}$In
/ Vernon, A.R. (Manchester U. ; MIT ; Leuven U.) ; Binnersley, C.L. (Manchester U.) ; Garcia Ruiz, R.F. (MIT ; CERN) ; Lynch, K.M. (Manchester U. ; CERN) ; Miyagi, T. (Tsukuba U., CCS ; Darmstadt, Tech. U. ; Darmstadt, EMMI ; Heidelberg, Max Planck Inst. ; TRIUMF) ; Billowes, J. (Manchester U.) ; Bissell, M.L. (Manchester U.) ; Cocolios, T.E. (Leuven U.) ; Delaroche, J.P. (CEA DAM) ; Dobaczewski, J. (York U., England ; Warsaw U.) et al.
We employed laser spectroscopy of atomic transitions to measure the nuclear charge radii and electromagnetic properties of the high-spin isomeric states in neutron-rich indium isotopes (Z = 49) near the closed proton and neutron shells at Z = 50 and N = 82. Our data reveal a reduction in the nuclear charge radius and intrinsic quadrupole moment when protons and neutrons are fully aligned in 129In(N = 80), to form the high spin isomer. [...]
arXiv:2505.14977.-
2025-06-26 - 9 p.
- Published in : 10.1103/m35x-mw7z
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