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Münster 2011 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 51: Struktur und Dynamik von Kernen VIII

HK 51.2: Talk

Thursday, March 24, 2011, 14:30–14:45, A-1

Providing new anchor points for the mass surface with direct high-precision mass measurements on rare-earth nuclides at TRIGA-TRAP — •M. Eibach1,2, T. Beyer2,3, K. Blaum2,3, M. Block4, R.B. Cakirli3, 5, K. Eberhardt1, A. Gonschior1, F. Herfurth4, J. Ketelaer3, Sz. Nagy3,4, D. Neidherr3,4, W. Nörtershäuser1,4, D. Renisch1,3, and C. Smorra1,21Institut für Kernchemie, Johannes Gutenberg-Universität, Mainz — 2Physikalisches Institut, Ruprecht-Karls-Universität, Heidelberg — 3Max-Planck-Institut für Kernphysik, Heidelberg — 4GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt — 5Department of Physics, University of Istanbul, Turkey

High-precision nuclear mass data is required for several scientific applications like calculations on the astrophysical r-process, nuclear structure studies and tests of nuclear mass models. Such data is gained for example by the double Penning trap mass spectrometer TRIGA-TRAP, one branch of the TRIGA-SPEC experiment, which has recently been set up in order to investigate the neutron-rich as well as the long-lived transuranium area of the chart of nuclides. The nuclides of interest are either produced by thermal neutron-induced fission of a uranium target or ionized off-line in a laser ablation ion source. Mass measurements on rare-earth nuclides were already performed and deviations from the literature values were discovered.
In this talk the present status of the TRIGA-TRAP experiment will be outlined and the influence of the latest mass measurement results on the Atomic-Mass Evaluation will be presented.

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