SAMOP 2023 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 4: Heavy and Superheavy Elements
MS 4.5: Vortrag
Donnerstag, 9. März 2023, 12:30–12:45, F128
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, Arno Claessens4, Piet van Duppen4, Rafael Ferrer4, Jeremy Lantis3, Mustapha Laatiaoui3, Steven Nothhelfer1,2,3, Sebastian Raeder1,2, Moritz Schlaich5, Lutz Schweikhard6, Matou Stemmler3, Thomas Walther5, and Klaus Wendt3 — 1GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, DE — 2Helmholtz-Institut, Mainz, DE — 3Department Chemie, Johannes Gutenberg-Universität, Mainz, DE — 4Institut voor Kern- en Stralingsfysica, KU Leuven, Leuven, Belgium — 5Technische Universität Darmstadt, DE — 6Universität Greifswald, DE
At GSI-Darmstadt we use the in gas-Jet Resonant Ionization Spectroscopy (JetRIS) apparatus to perform laser spectroscopy of elements in the heavy actinide region to determine their nuclear and atomic properties. JetRIS utilizes α-decay detection to maximize sensitivity while minimizing the background from unwanted ions. However, for long-lived nuclides (t1/2 > 10 h) a decay-based detection will not be practical. Thus, a multi-reflection time-of-flight mass seperator (MR-ToF MS) is being developed for the JetRIS apparatus, allowing a separation of ions according to their mass to charge ratios with a high mass-resolving power, opening the possibility of direct ion detection. This will allow measuring β-decaying species and long-lived isotopes. An overview of the MR-ToF MS design and its integrations into the system will be given. Prospects for measurements will be discussed.