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Identification of the neutron-rich isotope174Er

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Zeitschrift für Physik A Atomic Nuclei

Abstract

The heaviest known erbium isotope, 3.3(2) min.174Er, has been identified using on- line isotope separation and by ß and γ- ray spectroscopy. Twelve γ rays were placed in a preliminary decay scheme. The mass of the new isotope was established by the separator and the Z was deduced from Tm K x ray coincident ß and γ rays. In addition, the heaviest known isotope of holmium171Ho was observed with a half-life of 49(5) s.

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Authors and Affiliations

  1. Nuclear Science Division, Lawrence Berkeley Laboratory, 1 Cyclotron Road, 94720, Berkeley, CA, USA

    R. M. Chasteler, J. M. Nitschke, R. B. Firestone, K. S. Vierinen, P. A. Wilmarth & A. A. Shihab-Eldin

Authors
  1. R. M. Chasteler
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  2. J. M. Nitschke
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  3. R. B. Firestone
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  4. K. S. Vierinen
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  5. P. A. Wilmarth
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  6. A. A. Shihab-Eldin
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Additional information

We thank K. Takahashi for making his gross theory of β decay code available. We also thank L. Archambault, A. Wydler and the SuperHILAC staff for their assistance. This work was supported by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Division of Nuclear Physics, of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098.

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Chasteler, R.M., Nitschke, J.M., Firestone, R.B. et al. Identification of the neutron-rich isotope174Er. Z. Physik A - Atomic Nuclei 332, 239–240 (1989). https://doi.org/10.1007/BF01289785

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  • DOI: https://doi.org/10.1007/BF01289785

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