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Smooth trends in fermium charge radii and the impact of shell effects
/ Warbinek, Jessica (Darmstadt, GSI ; Mainz U. ; CERN ; Helmholtz Inst., Mainz) ; Rickert, Elisabeth (Darmstadt, GSI ; Mainz U. ; Helmholtz Inst., Mainz) ; Raeder, Sebastian (Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Albrecht-Schönzart, Thomas (Colorado School of Mines) ; Andelic, Brankica (Darmstadt, GSI ; Helmholtz Inst., Mainz ; Groningen U.) ; Auler, Julian (Mainz U.) ; Bally, Benjamin (IRFU, Saclay) ; Bender, Michael (IP2I, Lyon) ; Berndt, Sebastian (Mainz U.) ; Block, Michael (Darmstadt, GSI ; Mainz U. ; Helmholtz Inst., Mainz) et al.
The quantum-mechanical nuclear-shell structure determines the stability and limits of the existence of the heaviest nuclides with large proton numbers Z ≳ 100 (refs. $^{1–3}$). [...]
2024 - 5 p.
- Published in : Nature 634 (2024) 1075-1079
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Yield measurements for lanthanide elements with Ta-foil target and a LIST ion source
/ Chrysalidis, Katerina (CERN) ; Heinke, Reinhard (CERN) ; Au, Mia (CERN) ; Bernerd, Cyril (CERN) ; Jaradat, Asar AH (CERN, University of Manchester) ; Köster, Ulli (ILL) ; Mancheva, Ralitsa (CERN, KU Leuven) ; Marsh, Bruce (CERN) ; Reis, Edgar (CERN) ; Schütt, Maximilian (CERN) et al.
CERN-INTC-2023-065 ; INTC-I-263.
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2023.
Fulltext - Original Document (INTC-I-246)
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Nuclear moments and isotope shifts of the actinide isotopes Cf249–253 probed by laser spectroscopy
/ Weber, Felix (Mainz U., Inst. Phys.) ; Albrecht-Schönzart, Thomas E (Florida State U.) ; Allehabi, Saleh O (New South Wales U.) ; Berndt, Sebastian (Mainz U., Inst. Phys. ; Mainz U.) ; Block, Michael (Darmstadt, GSI ; Mainz U. ; Helmholtz Inst., Mainz) ; Dorrer, Holger (Mainz U.) ; Düllmann, Christoph E (Darmstadt, GSI ; Mainz U. ; Helmholtz Inst., Mainz) ; Dzuba, Vladimir A (New South Wales U.) ; Ezold, Julie G (Oak Ridge) ; Flambaum, Victor V (New South Wales U.) et al.
We report on high-resolution laser spectroscopy studies on Cf249–253 with spectral linewidths in the order of 100 MHz carried out at the RISIKO mass separator at Mainz University. In total three atomic ground-state transitions were investigated and the hyperfine parameters for the odd-A isotopes and isotope shift for all examined isotopes have been determined from the measured spectra. [...]
2023 - 10 p.
- Published in : Phys. Rev. C 107 (2023) 034313
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Room-Temperature $^{181}$Ta(TiO$_2$): An e-γ TDPAC Study
/ Yap, Ian Chang Jie (Gottingen U., II. Phys. Inst.) ; Schell, Juliana (CERN ; Duisburg-Essen U.) ; Dang, Thien Thanh (Duisburg-Essen U.) ; Noll, Cornelia (Bonn U., HISKP) ; Beck, Reinhard (Bonn U., HISKP) ; Köster, Ulli (Laue-Langevin Inst.) ; Mansano, Ronaldo (Sao Paulo U.) ; Hofsäss, Hans Christian (Gottingen U., II. Phys. Inst.)
In this work, we report on the hyperfine parameters of the foreign 181Ta probe in the rutile structure of the single crystal TiO2 using the e−γ and γ−γ time differential perturbed angular correlation (TDPAC) technique. We implanted 181Hf ions into a sample of single crystal rutile TiO2 in the Bonn Isotope Separator. [...]
2022 - 31 p.
- Published in : Crystals 12 (2022) 946
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A Thermal Sublimation Generator of $^{131 \textrm{m}}$Xe
/ Kulesz, Karolina (CERN ; Geneva U.) ; Azaryan, Nikolay (CERN) ; Baranowski, Mikołaj (Mickiewicz U., Poznan) ; Chojnacki, Mateusz Jerzy (CERN ; Geneva U.) ; Köster, Ulli (Laue-Langevin Inst.) ; Lica, Razvan (CERN ; Bucharest, IFIN-HH) ; Pascu, Sorin Gabriel (CERN ; Bucharest, IFIN-HH) ; Jolivet, Renaud Blaise (Maastricht U.) ; Kowalska, Magdalena (CERN)
Stable and unstable isotopes of the heavy noble gas xenon find use in various medical
applications. However, apart from $^{133}$Xe, used for Single Photon Emission Computed Tomography,
radioactive isotopes of xenon are currently complicated to obtain in small quantities. [...]
2022 - 14 p.
- Published in : Instruments 6 (2022) 76
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Towards in vivo applications of 111Ag perturbed angular correlation of γ-rays (PAC) spectroscopy
/ Tosato, Marianna (U. Padua (main)) ; Asti, Mattia ; Di Marco, Valerio (U. Padua (main)) ; Jensen, Marianne L (Bohr Inst.) ; Schell, Juliana (CERN ; U. Duisburg-Essen) ; Dang, Thien Thanh (U. Duisburg-Essen) ; Köster, Ulli (Laue-Langevin Inst.) ; Jensen, Mikael (Denmark, Tech. U.) ; Hemmingsen, Lars (U. Copenhagen (main))
$^{111}$Ag-perturbed angular correlation of γ-rays (PAC) spectroscopy provides information on the nuclear quadrupole interactions, and thereby on the local structure and dynamics of the silver ion binding site. Brownian rotational motion, i.e. [...]
2022 - 8 p.
- Published in : Appl. Radiat. Isot. 190 (2022) 110508
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Observation of the radiative decay of the ${}^{229}\mathrm{Th}$ nuclear clock isomer
/ Kraemer, Sandro (Leuven U. ; LMU Munich (main)) ; Moens, Janni (Leuven U.) ; Athanasakis-Kaklamanakis, Michail (Leuven U. ; CERN) ; Bara, Silvia (Leuven U.) ; Beeks, Kjeld (Vienna, Tech. U., Atominst.) ; Chhetri, Premaditya (Leuven U.) ; Chrysalidis, Katerina (CERN) ; Claessens, Arno (Leuven U.) ; Cocolios, Thomas E. (Leuven U.) ; Correia, João G.M. (Lisbon U.) et al.
The nucleus of the radioisotope thorium-229 (${}^{229}$Th) features an isomer with an exceptionally low excitation energy that enables direct laser manipulation of nuclear states. For this reason, it is a leading candidate for use in next-generation optical clocks. [...]
arXiv:2209.10276.-
2023-05-24 - 15 p.
- Published in : Nature 617 (2023) 706–710
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Yield measurements for lanthanide elements with Ta-foil target and a LIST ion source
/ Chrysalidis, Katerina (CERN) ; Heinke, Reinhard (CERN) ; Au, Mia (CERN, Johannes Gutenberg-Universitaet Mainz) ; Bernerd, Cyril (CERN, KU Leuven) ; Jaradat, Asar A H (CERN, The University of Manchester) ; Köster, Ulli (Institut Laue-Langevin) ; Mancheva, Ralitsa (CERN, KU Leuven) ; Marsh, Bruce (CERN) ; Reis, Edgar (CERN) ; Schütt, Maximilian (CERN) et al.
CERN-INTC-2022-042 ; INTC-I-246.
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2022.
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