München 2006 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 21: Postersitzung

HK 21.27: Poster

Dienstag, 21. März 2006, 15:30–17:00, P

High-accuracy mass measurements of short-lived nuclides with ISOLTRAP — •A. Herlert¹, S. Baruah², K. Blaum^3,4, P. Delahaye¹, M. Dworschak⁵, S. George^3,4, C. Guénaut⁶, U. Hager⁷, F. Herfurth³, A. Kellerbauer¹, H.-J. Kluge³, M. Marie-Jeanne¹, S. Schwarz⁸, L. Schweikhard², and C. Yazidjian^3,1 — ¹CERN, Physics Department, 1211 Geneva 23, Switzerland — ²Inst. f. Physik, Universität Greifswald, 17487 Greifswald, Germany — ³GSI, 64291 Darmstadt, Germany — ⁴Inst. f. Physik, Universität Mainz, 55099 Mainz, Germany — 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.