Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 64: Struktur und Dynamik von Kernen
HK 64.2: Vortrag
Donnerstag, 7. März 2013, 14:30–14:45, HSZ-301
Recent high-precision nuclear mass measurements at TRIGA-TRAP — •M. Eibach1,2, T. Beyer2,3, K. Blaum2,3, M. Block4, Ch. E. Düllmann1,4,5, K. Eberhardt1,5, Sz. Nagy3,4, W. Nörtershäuser1,4, D. Renisch1, and C. Smorra2,3 — 1Institut für Kernchemie, Johannes Gutenberg-Universität, Mainz — 2Fakultät für Physik und Astronomie, Ruprecht-Karls-Universität, Heidelberg — 3Max-Planck-Institut für Kernphysik, Heidelberg — 4GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt — 5Helmholtz-Institut Mainz, Mainz
Calculations on the astrophysical r-process, tests of nuclear mass models and predictions of neutrinoless double-beta decays require high-precision nuclear mass or Q value data. Penning-trap mass spectrometers such as TRIGA-TRAP, a branch of the TRIGA-SPEC experiment, are well-suited to provide such data with the requested precision. The nuclides of interest are either produced by thermal neutron-induced fission of e.g. 235U at the research reactor TRIGA Mainz or ionized off-line by a non-resonant laser ablation ion source.
In this contribution the present status of TRIGA-TRAP is outlined. Recent mass measurements of stable and long-lived nuclides as well as Q value measurements of their transitions will be presented.