α decay of the neutron-deficient isotope 190At

A. N. Andreyev, D. Seweryniak, B. Andel, S. Antalic, D. T. Doherty, A. Korichi, C. Barton, L. Canete, M. P. Carpenter, R. M. Clark, P. A. Copp, J. G. Cubiss, J. Heery, Y. Hrabar, H. Huang, T. Huang, V. Karayonchev, F. G. Kondev, T. Lauritsen, G. LotayC. Müller-Gatermann, C. Page, D. H. Potterveld, P. H. Regan, W. Reviol, D. Rudolph, M. Siciliano, R. S. Sidhu, A. Sitarčík, P. J. Woods, Z. Yue, W. Zhang

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Abstract

The α decay of the neutron-deficient 190At isotope was observed following the 103Rh(90Zr,3n)190At reaction at Argonne National Laboratory. The reaction products were separated from the beam using the Argonne Gas-Filled Analyzer and implanted into a double-sided Si strip detector. The spatial and temporal correlations between implanted nuclei and subsequent α decays towards the known daughter isotope 186Bi were used to identify and characterize 190At nuclei. Two possible decay scenarios are proposed for the 190At→186Bi decay.
Original languageEnglish
Article number034303
Number of pages4
JournalPhysical Review C
Volume108
Issue number3
DOIs
Publication statusPublished - 2023 Sept 1

Subject classification (UKÄ)

  • Subatomic Physics

Free keywords

  • alpha decay
  • binding energy
  • nuclear masses
  • lifetime
  • nuclear structure

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  • Lawrence Berkeley National Laboratory

    Rudolph, D. (Visiting researcher), Clark, R. M. (Role not specified) & Gates, J.  . (Role not specified)

    2022 Sept 222023 Mar 9

    Activity: Visiting an external institutionResearch or teaching at external organisation

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