Erlangen 2022 – scientific programme
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MS: Fachverband Massenspektrometrie
MS 6: New Developments
MS 6.3: Talk
Wednesday, March 16, 2022, 14:45–15:00, MS-H9
New developments in radiation-detected resonance ionization towards the heaviest actinides — •Jessica Warbinek1, 2, Brankica Andelić1, 3, Michael Block1, 2, 4, Premaditya Chhetri1, 4, Arno Claessens5, Rafael Ferrer5, Francesca Giacoppo1, 4, Oliver Kaleja1, 6, Tom Kieck1, 4, EunKang Kim2, Mustapha Laatiaoui2, Jeremy Lantis2, Andrew Mistry1, 7, Danny Münzberg1, 2, 4, Steven Nothhelfer1, 2, 4, Sebastian Raeder1, 4, Emmanuel Rey-Herme8, Elisabeth Rickert1, 2, 4, Jekabs Romans5, Elisa Romero-Romero2, Marine Vandebrouck8, and Piet Van Duppen5 — 1GSI Helmholtzzentrum für Schwerionenforschung, Germany — 2Johannes Gutenberg-Universität, Mainz, Germany — 3KVI-CART, Groningen, The Netherlands — 4Helmholtz Institut Mainz, Germany — 5KU Leuven, IKS, Belgium — 6Universität Greifswald, Germany — 7TU Darmstadt, Germany — 8CEA Saclay, France
Laser spectroscopy can be a powerful tool to get insight into atomic and nuclear structures of exotic elements such as the heavy actinides. However, commonly applied techniques often lack the required sensitivity as most of these nuclides are very short-lived and can only be produced in atom-at-a-time quantities. The efficient and sensitive RAdiation-Detected Resonance Ionization Spectroscopy (RADRIS) method enabled the first laser spectroscopy of nobelium and it was recently applied to study a chain of fermium isotopes. To expand this technique for the search of atomic levels in the heaviest actinide, lawrencium (Z=103), the sensitivity of the setup needs to be further improved. Therefore, a new movable double-detector setup was developed, which allows an enhancement in the overall efficiency by about 60 % compared to the single-detector design. Further development work was performed to enable the study of shorter-lived (<1 s) and longer-lived (>1 h) nuclides with the RADRIS method. The most recent results on the commissioning of the new setup will be presented.