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Accurate masses of unstable rare-earth isotopes by ISOLTRAP |
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| Authors: | D. Beck F. Ames G. Audi G. Bollen F. Herfurth H. -J. Kluge A. Kohl M. König D. Lunney I. Martel R. B. Moore H. Raimbault-Hartmann E. Schark S. Schwarz M. de Saint Simon J. Szerypo |
| Affiliation: | 1. GSI, D-64291, Darmstadt, Germany 2. Institut für Physik, Universit?t Mainz, D-55099, Mainz, Germany 3. CSNSM-IN2P3-CNRS, F-91405, Orsay-Campus, France 4. CERN, CH-1211, Geneva, Switzerland 5. Instituto de Estructura de la Materia, CSIC, Madrid, Spain 6. Foster Radiation Laboratory, McGill University, Montreal, H3A 2B1, Canada 7. Institute of Experimental Physics, Warsaw-University, PL-00681, Warsaw, Poland |
| Abstract: | Direct mass measurements of neutron-deficient rare-earth isotopes in the vicinity of 146Gd were performed with the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. This paper reports on the measurement of more than 40 isotopes of the elements praseodymium, neodymium, promethium, samarium, europium, dysprosium and holmium, that have been measured with a typical accuracy of m 14 keV. An atomic mass evaluation has been performed taking into account other experimental mass values via a least-squares adjustment. The results of the adjustment are discussed. Received: 18 April 2000 / Accepted: 12 July 2000 |
| Keywords: | PACS. 21.10.Dr Binding energies and masses |
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