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Decay studies of 215-217Th using ER- γ- α- γ coincidences

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Abstract.

The decay of 215-217Th was investigated by ER-γ-α-γ coincidence measurements. The nuclei were produced by the reaction 170Er(50Ti, xn)220-xTh. Evaporation residues recoiling out of the target were separated in flight by the velocity filter SHIP and stopped in a position-sensitive 16-strip PIPS-detector in order to study their subsequent decays. Associated γ-rays were detected by a fourfold Ge-Clover detector. In the present work we extracted new and improved data for 215-217Th including isomeric decays. The results are discussed and compared to previously published data.

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Authors and Affiliations

  1. Gesellschaft für Schwerionenforschung mbH, D-64220, Darmstadt, Germany

    P. Kuusiniemi, F. P. Heßberger, D. Ackermann, S. Hofmann, B. Sulignano, I. Kojouharov & R. Mann

  2. Department of Physics, University of Jyväskylä, FIN-40014, Jyväskylä, Finland

    P. Kuusiniemi

  3. Institut für Physik, Johannes Gutenberg-Universität Mainz, D-55099, Mainz, Germany

    D. Ackermann & B. Sulignano

  4. Institut für Kernphysik, Johann Wolfgang Goethe-Universität, D-60486, Frankfurt am Main, Germany

    S. Hofmann

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  1. P. Kuusiniemi
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  2. F. P. Heßberger
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  3. D. Ackermann
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  4. S. Hofmann
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  6. I. Kojouharov
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Correspondence to P. Kuusiniemi.

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Kuusiniemi, P., Heßberger, F.P., Ackermann, D. et al. Decay studies of 215-217Th using ER- γ- α- γ coincidences. Eur. Phys. J. A 25, 397–404 (2005). https://doi.org/10.1140/epja/i2005-10117-0

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  • DOI: https://doi.org/10.1140/epja/i2005-10117-0

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