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The European Physical Journal A

, Volume 46, Issue 3, pp 337–343 | Cite as

The new isotope 208Th

  • J. A. Heredia
  • A. N. Andreyev
  • S. Antalic
  • S. Hofmann
  • D. Ackermann
  • V. F. Comas
  • S. Heinz
  • F. P. Heßberger
  • B. Kindler
  • J. Khuyagbaatar
  • B. Lommel
  • R. Mann
Regular Article - Experimental Physics

Abstract.

The new neutron-deficient isotope 208Th was produced in the complete-fusion reaction 64Ni + 147Sm \( \rightarrow\) 208Th + 3n . Evaporation residues were separated in-flight by the velocity filter SHIP and subsequently identified on the basis of energy-, position- and time-correlated \( \alpha\) -decay chains. The measured \( \alpha\) -decay energy and half-life value of 208Th are 8044(30)keV and 1.7+1.7 -0.6 ms, respectively. Improved data on the \( \alpha\) -decay of 209Th , 210Th , 212Th and 208Ra were obtained using complete-fusion reactions of 64Ni with 147Sm , 150Sm , and 152Sm targets.

Keywords

Decay Chain Isomeric State 147Sm Evaporation Residue Evaporation Channel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • J. A. Heredia
    • 1
    • 2
  • A. N. Andreyev
    • 3
    • 4
    • 5
  • S. Antalic
    • 6
  • S. Hofmann
    • 2
    • 7
  • D. Ackermann
    • 2
  • V. F. Comas
    • 1
    • 2
  • S. Heinz
    • 2
  • F. P. Heßberger
    • 2
  • B. Kindler
    • 2
  • J. Khuyagbaatar
    • 2
  • B. Lommel
    • 2
  • R. Mann
    • 2
  1. 1.FIASGoethe-Universität FrankfurtFrankfurtGermany
  2. 2.GSI Helmholtzzentrum für Schwerionenforschung (GSI)DarmstadtGermany
  3. 3.School of Engineering and ScienceUniversity of the West of ScotlandPaisleyUK
  4. 4.The Scottish Universities Physics Alliance (SUPA)PaisleyUK
  5. 5.Instituut voor Kern- en StralingsfysicaK.U. Leuven, University of LeuvenLeuvenBelgium
  6. 6.Department of Nuclear Physics and BiophysicsComenius UniversityBratislavaSlovakia
  7. 7.Institut für PhysikGoethe-Universität FrankfurtFrankfurtGermany

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