Hamburg 2009 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 1: Präzisionsmassenspektrometrie, Ionenfallen, FT-IZR-MS, Moleküle, Cluster I
MS 1.5: Vortrag
Montag, 2. März 2009, 12:15–12:30, VMP 8 R05
TRIGA-TRAP: A Penning trap mass spectrometer at the research reactor TRIGA Mainz — •Christian Smorra1,2, Klaus Blaum1,3, Michael Block4, Klaus Eberhardt2, Martin Eibach5, Frank Herfurth4, Jens Ketelaer5, Jochen Ketter5, Konstantin Knuth5, Szilard Nagy3, and Julia Repp5 — 1Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg — 2Institut für Kernchemie, Universität Mainz, D-55128 Mainz — 3Max-Planck-Institut für Kernphysik, D-69117 Heidelberg — 4GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt — 5Institut für Physik, 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.