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Mainz 2017 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 1: Precision Mass Spectrometry and Fundamental Applications I

MS 1.6: Talk

Monday, March 6, 2017, 16:15–16:30, RW 2

Status report on the on-line coupling of the TRIGA-TRAP experiment to the research reactor TRIGA Mainz — •Jessica Grund1,2,3, Klaus Blaum4, Michael Block2,3,5, Stanislav Chenmarev4, Christoph E. Düllmann1,2,3,5, Klaus Eberhardt1,2,3, Jacques J. W. van de Laar1,2,3, Steffen Lohse2,3, Szilard Nagy4, Pascal Naubereit6, Fabian Schneider2,3, and Klaus Wendt1,21PRISMA Cluster of Excellence, Johannes Gutenberg-Universität, Mainz — 2Institut für Kernchemie, Johannes Gutenberg-Universität, Mainz — 3Helmholtz-Institut Mainz, Mainz — 4Max-Planck-Institut für Kernphysik, Heidelberg — 5GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt — 6Institut für Physik, Johannes Gutenberg-Universität, Mainz

Experimental data on ground-state properties of exotic nuclei are of interest for nuclear structure studies and allow testing the predictive power of nuclear mass models. Besides off-line measurements on long-lived transuranium isotopes, high-precision mass measurements on short lived nuclides can be performed at TRIGA-TRAP, thanks to the on-line coupling to the research reactor TRIGA Mainz. Neutron rich nuclides are produced by neutron-induced fission of U-235 inside the reactor, extracted by an aerosol-based gas-jet system and guided through a skimmer system to a high-temperature surface ion source. To improve the ionization efficiency, a new ion source has been successfully implemented in collaboration with JAEA/Tokai. An overview of the current status and latest results on the performance will be presented.

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