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Stuttgart 2012 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 5: Precision Mass Spectrometry and Fundamental Applications II

MS 5.4: Talk

Tuesday, March 13, 2012, 15:00–15:15, V57.06

Extraction of neutron-rich fission products from a nuclear reactor: status of the online-coupling at TRIGA-SPEC — •T Beyer1,2, K Blaum1,2, M Block4, K Eberhardt3, M Eibach2,3, Ch Düllmann3,4, F Herfurth4, D Lunney5, Sz Nagy1,4, W Nörtershäuser3,4, D Renisch1,3, and Ch Smorra1,21Max-Planck-Institut für Kernphysik, 69117 Heidelberg — 2Physikalisches Institut, Universität Heidelberg, 69120 Heidelberg — 3Institut für Kernchemie, Universität Mainz, 55128 Mainz — 4GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt — 5CSNSM, Université de Paris Sud, 91495 Orsay, France

Precise experimental data of the ground-state properties of short-lived nuclei are required to test the predictive power of nuclear mass models and to support astrophysical nucleosynthesis calculations. Besides the measurement of these properties with high precision, the creation and preparation of the nuclides of interest is one of the biggest challenges in this field of physics. The TRIGA reactor in Mainz provides high neutron fluxes for the production of exotic nuclei by neutron-induced fission of suitable actinoide targets. The extraction and preparation of these nuclei for both a double-Penning-trap mass spectrometer and a collinear-laser-spectroscopy setup is achieved by using an aerosol-loaded gas-jet system, a high-temperature surface ion source, a separator magnet, and an RF quadrupole cooler/buncher. The status of the online-coupling as well as intermediate test results will be presented.

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