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Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 26: Nuclear Structure and Dynamics I

HK 26.3: Vortrag

Dienstag, 17. März 2009, 15:00–15:15, H-ZO 40

TRIGA-TRAP: A Penning trap mass spectrometer at the research reactor TRIGA Mainz — •Jens Ketelaer1, Klaus Blaum2,3, Michael Block4, Klaus Eberhardt5, Martin Eibach1, Frank Herfurth4, Jochen Ketter1, Konstantin Knuth1, Szilard Nagy2, Julia Repp1, and Christian Smorra3,51Institut für Physik, Universität Mainz, D-55128 Mainz — 2Max-Planck-Institut für Kernphysik, D-69117 Heidelberg — 3Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg — 4GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt — 5Institut für Kernchemie, Universität Mainz, D-55128 Mainz

Nuclear masses represent the binding energies and, therefore, the sum of all interactions in the nucleus. They provide an important input parameter to nuclear structure models. Presently, a tremendous interest in masses of very exotic neutron-rich nuclides exists to support theoretical models for the nucleosynthesis via the rapid neutron capture process. The research reactor TRIGA Mainz provides access to a large variety of neutron-rich nuclides produced by thermal-neutron induced fission of an actinide target. The double-Penning trap mass spectrometer TRIGA-TRAP will perform high-precision mass measurements in this region of the nuclear chart as well as on actinides from uranium to californium [1]. It also serves as a test facility for the development of new techniques that will be implemented in future facilities like MATS at FAIR (GSI, Darmstadt). The layout of TRIGA-TRAP as well as recent mass measurements will be presented.

[1] J. Ketelaer et al., Nucl. Instr. Meth. A 594 (2008) 162.

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