Hannover 2010 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 7: Präzisionsmassenspektrometrie und Anwendungen II

MS 7.5: Vortrag

Donnerstag, 11. März 2010, 11:45–12:00, F 428

A Gas-Jet ECR Ion Source at TRIGA-SPEC — •Christian Smorra1,2, Thomas Beyer2,3, Klaus Blaum2,3, Michael Block4, Martin Eibach1,2, Klaus Eberhardt1, Frank Herfurth4, Jens Ketelaer5, Konstantin Knuth5, Szilard Nagy3,4, and Wilfried Nörtershäuser1,41Institut für Kernchemie, Johannes Gutenberg-Universität, Fritz-Strassmann-Weg 2, 55128 Mainz — 2Physikalisches Institut, Ruprecht Karls-Universität, Philosophenweg 12, 69120 Heidelberg — 3Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — 4GSI Helmholzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt — 5Institut für Physik, Johannes Gutenberg-Universität, Staudingerweg 7, 55128 Mainz

The TRIGA-SPEC experiment has been installed recently at the research reactor TRIGA Mainz. Ground state properties like masses, charge radii, spins, and moments of short-lived nuclides can be determined with very-high precision using the Penning trap mass spectrometer TRIGA-TRAP, and the collinear laser spectroscopy setup TRIGA-LASER. Short-lived neutron-rich radionuclides in the mass range 80 < A < 140 are produced by thermal neutron induced fission of e.g. U-235, Pu-239 or Cf-249, respectively. For the extraction and ionization of the fission products a gas-jet system is coupled to a 2.45-GHz ECR ion source for the production of singly charged ions. The gas-jet has been tested on-line and fission products have been extracted. First off-line tests of the ion source have been performed successfully with argon gas. The results of the commissioning test of the ion source and the on-line coupling of the experiments will be presented.

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