Bulg. J. Phys. vol.48 no.5-6 (2021), pp. 535-540

Nuclear Structure Studies with High-Precision Mass Measurements of Spontaneous Fission Fragments at the FRS Ion Catcher

A. Spătaru1,2,3, D. Amanbayev4, S. Ayet3, D.L. Balabanski1,2, S. Beck3,4, J. Bergmann4, P. Constantin1, T. Dickel3,4, H. Geissel3,4, C. Hornung3, N. Kalantar-Nayestanaki5, G. Kripko-Koncz4, I. Mardor6,7, A. Mollaebrahimi3,4,5, W.R. Plaß3,4, C. Scheidenberger3,4,8, M. Wasserheß4, J. Zhao3
1Extreme Light Infrastructure ? Nuclear Physics, Horia Hulubei National Institute for R&l;D in Physics and Nuclear Engineering, Măgurele 077125, Romania
2Doctoral School in Engineering and Applications of Lasers and Accelerators, University Polytechnica of Bucharest, Romania
3GSI Helmholtz Centre for Heavy Ion Research GmbH, Darmstadt, Germany
4II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Germany
5ESRIG, University of Groningen, Groningen, The Netherlands
6Tel Aviv University, 6997801 Tel Aviv, Israel
7Soreq Nuclear Research Center, 81800 Yavne, Israel
8Helmholtz Forschungsakademie Hessen für FAIR (HFHF), GSI Helmholtzzentrum für Schwerionenforschung, Campus Gießen, 35392 Gieße
Abstract. Nuclear mass is a key property of atomic nuclei. The accurate determination of nuclear masses provides information for the nuclear shell structure and nuclear deformations. The FRS Ion Catcher experimental setup at GSI, Darmstadt was used to perform mass measurements of 252Cf fragments using a multiple-reflection time-of-flight mass spectrometer. The reported results are compared to previous measurements and their implication in the estimation of two-neutron separation energy is discussed.

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