Freiburg 2024 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 5: Heavy and Superheavy Nuclei
MS 5.3: Vortrag
Mittwoch, 13. März 2024, 11:45–12:00, HS 3042
Status of Development of MR-ToF MS for JetRIS for laser spectroscopy of the heavy actinides at GSI/HIM — •Danny Münzberg1,2,3, Michael Block1,2,3, Alexandre Brizard4, Arno Claessens5, Rafael Ferrer5, Paul Fischer6, Christian Helmel3, Mustapha Laatiaoui3, Nathalie Lecesne4, Sebastian Raeder1,2, Hervé Savajols4, Moritz Schlaich7, Lutz Schweikhard6, Matou Stemmler3, Kenneth van Beek1,7, Piet Van Duppen5, Thomas Walther7, Klaus Wendt3, and Frank Wienholtz7 — 1GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, DE — 2Helmholtz-Institut, Mainz, DE — 3Johannes Gutenberg-Universität, Mainz, DE — 4GANIL, Caen, France — 5KU, Leuven, Belgium — 6Universität Greifswald, DE — 7Technische Universität, Darmstadt, DE
The in gas-Jet Resonant Ionization Spectroscopy (JetRIS) apparatus is applied for laser spectroscopy of isotopes in the heavy actinide region to determine their atomic and nuclear properties, at GSI, Darmstadt, Germany. So far, JetRIS utilizes α-decay detection to maximize sensitivity while minimizing the background from unwanted ions. However, for long-lived nuclides (t1/2> 10 h) decay-based detection will not be practical. Therefore a multi-reflection time-of-flight mass separator (MR-ToF MS) will be added to the JetRIS apparatus, allowing for a separation of ions by their mass-to-charge ratios with a high mass-resolving power and efficiency. This will open up the possibility of mass-selective ion detection with low background and will also enable the measurement of non α-decaying species, as well as long-lived and stable isotopes. The MR-ToF MS design is developed within the Darmstadt’s MR-ToF (Da’s MR-ToF) Collaboration and an overview on the setup and its integration into JetRIS will be given. The status of the comissioning, as well as experimental results and prospects for future measurements will be discussed.