ISOLDE Workshop and Users meeting 2020

Session

Ground State Properties Session

27 Nov 2020, 09:00

Conveners

Ground State Properties Session

• Liss Vazquez Rodriguez (Max-Planck-Gesellschaft (DE))

Ground State Properties Session

• Liss Vazquez Rodriguez (Max-Planck-Gesellschaft (DE))

15. Laser photodetachment spectroscopy in an MR-ToF device: towards the isotope shift measurements in short-lived radioinuclides

David Leimbach (Johannes Gutenberg Universitaet Mainz (DE))

27/11/2020, 09:00

Invited

The electron affinity (EA) is the energy released when an additional electron is bound to a neutral atom, thereby creating a negative ion. Due to the lack of a long-range Coulomb attraction, the EA is dominated by electron-correlation effects resulting in binding energies in the order of only a few electronvolts. Hence, negative ions represent intriguing probes for theoretical atomic models...

30. Laser spectroscopy of neutron-rich 207;208Hg isotopes: Illuminating the kink and odd-even staggering in charge radii across the N = 126 shell closure

Thomas Day Goodacre (TRIUMF (CA))

27/11/2020, 09:20

Submitted

The mean-square charge radii of $^{207,208}$Hg have been studied by the application of in-source resonance ionization laser spectroscopy, employing the ISOLDE-RILIS together with the Windmill detector and the ISOLTRAP MR-ToF MS. The characteristic kink in the charge radii at the N = 126 neutron shell closure has been revealed, providing the first information on its behavior below Z = 82. This...

8. Collinear laser spectroscopy of exotic Pd isotopes at the IGISOL facility

Sarina Geldhof (University of Jyvaskyla (FI), KU Leuven (BE))

27/11/2020, 09:40

Submitted

High-resolution laser spectroscopy has been proven to be a powerful tool to extract nuclear structure data in an almost model-independent manner [1]. The isotope shift which can be extracted from the hyperfine spectra of exotic nuclei gives direct access to their changes in mean-square charge radii. This provides information on e.g. deformation and shape coexistence, proton-neutron pairing...

7. High-precision laser ionization spectroscopy towards 100Sn

Fredrik Olof Andre Parnefjord Gustafsson (KU Leuven (BE))

27/11/2020, 10:10

Invited

Collinear resonance ionization spectroscopy is a powerful technique which can provide a unique insight in nuclear properties such as spins, electromagnetic moments and changes in mean-square charge radii from near doppler-free measurement of the hyperfine structure. This technique was used at the Collinear Resonance Ionization Spectroscopy (CRIS) beamline at ISOLDE-CERN, for studying nuclear...

10. High-precision mass measurements of neutron-rich krypton isotopes

Ivan Kulikov (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))

27/11/2020, 10:30

Submitted

As small as it is, about 1% of the total mass of an atom, the binding energy carries precious information regarding all the forces at play within the system. Hence, studying the evolution of binding differences along isotopic and isotonic chains can reveal nuclear structure effect such as shell closures or region of increased collectivity. In particular, the neutron-rich region between...

20. MIRACLS: From Proof of Principle Towards First Online Operation

Franziska Maria Maier (Universität Greifswald)

27/11/2020, 10:50

Submitted

The Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS) is a novel approach for Collinear Laser Spectroscopy (CLS) in order to probe the most `exotic’ nuclides with very low production yields [1]. This is achieved by trapping an ion bunch in an electrostatic ion beam trap, also known as Multi-Reflection Time-of-Flight (MR-ToF) device in precision mass spectrometry [2], in...