Hannover 2010 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 5: Präzisionsmassenspektrometrie und Anwendungen I

MS 5.3: Vortrag

Mittwoch, 10. März 2010, 15:00–15:15, F 428

Setup of a separator magnet and an RFQ-buncher for the TRIGA-SPEC experiment — •T Beyer1,2, M Block5, K Eberhardt3, M Eibach1,3, F Herfurth5, J Ketelaer4, K Knuth4, D Lunney6, Sz Nagy2,5, W Nörtershäuser3,5, C Smorra1,3, and K Blaum1,21Physikalisches Institut, Universität Heidelberg, 69120 Heidelberg — 2Max-Planck-Institut für Kernphysik, 69117 Heidelberg — 3Institut für Kernchemie, Universität Mainz, 55128 Mainz — 4Institut für Physik, Universität Mainz, 55128 Mainz — 5GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt — 6CSNSM, Université de Paris Sud, 91495 Orsay, France

Precise experimental data of the ground-state properties of heavy nuclides are required to test the predictive power of nuclear mass models and to support nucleosythesis calculations of the astrophysical r-process. The TRIGA-TRAP mass spectrometer and the TRIGA-LASER laser spectroscopy setup, forming the TRIGA-SPEC experiment, were recently installed at the research reactor TRIGA Mainz in order to perform high-precision measurements of the ground state properties of short-lived neutron-rich radionuclides. The radionuclides are produced by thermal neutron-induced fission in an actinoide target inside the reactor, extracted by a gas-jet system, and ionized by an ECR ion source. The ions of interest will then be mass-separated in a 90 dipole magnet. An RFQ buncher is being installed to accumulate, cool and bunch the ion beam. The status of the implementation of the dipole magnet and the RFQ buncher will be presented.

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