Köln 2025 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 37: Nuclear Astrophysics V

HK 37.1: Gruppenbericht

Mittwoch, 12. März 2025, 17:30–18:00, SR 0.03 Erw. Physik

Towards the Early- and First-Science experiments with the Super-FRS Ion Catcher — •Daler Amanbayev^1,2,3 and The FRS Ion Catcher Collaboration^1,2,3 — ¹Justus-Liebig Universität Gießen, Gießen, Germany — ²Helmholtz Research Academy Hesse for FAIR (HFHF), Campus Gießen, Gießen, Germany — ³GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany

The Super-FRS Ion Catcher (Super-FRS-IC) setup will enable the measurements of beta-delayed (multiple-)neutron emission probabilities (Pxn) i.e., data for r-process nucleosynthesis models that is lacking the most. Moreover, the setup will study multi-nucleon transfer (MNT) reactions driven by secondary beams as a promising method for accessing the unexplored heavy neutron-rich nuclei. These topics will be in focus in the Early- and First-Science programs at the Super-FRS at FAIR.

At the Super-FRS-IC, the exotic nuclei produced at relativistic energies and separated in-flight will be thermalized in the Cryogenic Stopping Cell (CSC), transported over a radio frequency quadrupole (RFQ) beamline and analyzed via in the Multiple-Reflection Time-Of-Flight Mass-Spectrometer (MR-TOF-MS). The combination of characteristics of the CSC and the MR-TOF-MS enable conducting experiments in new and effective ways e.g., MNT reactions in-cell and simultaneous measurments of Pxn, nuclear masses, half-lives and Q-values.

This contribution presents the status of the Super-FRS-IC setup and provides an overview of the proof-of-principle experiments conducted at GSI with the FRS Ion Catcher setup.

Keywords: r-process; mass spectrometry; mr-tof-ms; gsi; fair