Gießen 2024 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 72: Poster
HK 72.60: Poster
Thursday, March 14, 2024, 17:15–18:45, HBR 14: Foyer
Recent measurements and developments at ISOLTRAP — •Paul Florian Giesel for the ISOLTRAP collaboration — Universität Greifswald, Institute of Physics, Germany
Isoltrap [1] is a multi ion-trap mass spectrometer located at ISOLDE/CERN dedicated to high-precision mass measurements of artificially produced, short-lived, exotic radionuclides far from stability. The experiment employs multi-reflection time-of-flight and Penning-trap mass spectrometry for absolute and relative mass measurements. By using Einstein’s famous formula E=mc2, a measured mass can be translated into a binding energy. This binding energy reflects all underlying interactions in the nucleus and allows the study of nuclear structure and nuclear astrophysics, the weak interaction and other fundamental physics applications. The current status of the experimental setup and recent technical developments will be presented as well as the results of the most recent beamtime periods. These include the neutron deficient 97,98Cd ground states in the vicinity of the doubly-magic 100Sn and the 97mCd isomeric state, as well as the first mass measurements of the neutron-rich 209,210Hg. A measurement of the 79*Zn isomer resolved the state ordering of the 1/2+ and 5/2+ states and solidifies previous evidence of shape coexistence [2].
[1] Lunney, D. et al., J. Phys. G: Nucl. Part. Phys. 44, 064008 (2017) [2] Nies et al., PRL. In print (2023), *arXiv:2310.16915
Keywords: Mass spectrometry; MR-ToF; Penning traps; Nuclear physics; Radionuclides