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Hyperfine Interactions 171 (2006) 83-91
Penning trap mass spectrometry for nuclear structure studies
K. Blaum1, 2, D. Beck2, M. Breitenfeldt3, S. George1, 2, F. Herfurth2, A. Herlert4, A. Kellerbauer5, H.-J. Kluge2, 6, D. Lunney7, R. Savreux2, S. Schwarz8, L. Schweikhard3, C. Yazidjian2

High-precision mass measurements as performed at the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN are an important contribution to the investigation of nuclear structure. Precise nuclear masses with less than 0.1 ppm relative mass uncertainty allow stringent tests of mass models and formulae that are used to predict mass values of nuclides far from the valley of stability. Furthermore, an investigation of nuclear structure effects like shell or sub-shell closures, deformations, and halos is possible. In addition to a sophisticated experimental setup for precise mass measurements, a radioactive ion-beam facility that delivers a large variety of short-lived nuclides with sufficient yield is required. An overview of the results from the mass spectrometer ISOLTRAP is given and its limits and possibilities are described.
1 :  Johannes Gutenberg-Universität
2 :  GSI - Gesellschaft für Schwerionenforschung mbH
3 :  Ernst-Moritz-Arndt-Universität
4 :  CERN - European Organization for Nuclear Research
5 :  MPI für Kernphysik
6 :  Ruprecht-Karls-Universität
7 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
8 :  NCSL - National Supercondcting Cyclotron Laboratory
Physique/Physique Nucléaire Expérimentale
ISOLTRAP – mass spectrometry – nuclear structure – Penning trap – short-lived nuclides
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