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Frankfurt 2006 – scientific programme

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MS: Massenspektrometrie

MS 5: Präzisions-MS kurzlebiger Nuklide 1

MS 5.2: Talk

Wednesday, March 15, 2006, 14:30–14:45, H1

High-accuracy mass measurements of short-lived nuclides with ISOLTRAP — •K. Blaum1,2, S. Baruah3, P. Delahaye4, M. Dworschak5, S. George1,2, C. Guénaut6, U. Hager7, F. Herfurth1, A. Herlert4, A. Kellerbauer4, H.-J. Kluge1, M. Marie-Jeanne4, S. Schwarz8, L. Schweikhard3, and C. Yazidjian1,41GSI, 64291 Darmstadt, Germany — 2Inst. f. Physik, Universität Mainz, 55099 Mainz, Germany — 3Inst. f. Physik, Universität Greifswald, 17487 Greifswald, Germany — 4CERN, Physics Department, 1211 Geneva 23, Switzerland — 5Physiaklisches Institut, Universität Würzburg, 97074 Würzburg Germany — 6CSNSM-IN2P3-CNRS, 91405 Orsay-Campus, France — 7University of Jyväskylä, Department of Physics, 40014 Jyväskylä, Finland — 8NSCL, Michigan State University, East Lansing, MI 48824-1321, USA

The Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN is devoted to accurate mass measurements of short-lived nuclides. Recent mass measurements with a relative mass uncertainty in the order of 10−8 provide new data for tests of nuclear and astrophysical models. The results for the mass determination of neutron-rich Zn, Sn, and Cd isotopes will be presented. In addition, an overview of new technical developments at ISOLTRAP will be given. Examples are a new ion detector for higher detection efficiency as well as a temperature and pressure regulation for a minimization of magnetic field fluctuations.

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