Isomeric Decay Spectroscopy of the 217Bi Isotope

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The structure of the neutron-rich bismuth isotope 217Bi has been studied for the first time. The fragmentation of a primary 238U beam at the FRS-RISING setup at GSI was exploited to perform γ-decay spectroscopy, since μs isomeric states were expected in this nucleus. Gamma rays following the decay of a t1/2=3 μs isomer were observed, allowing one to establish the low-lying structure of 217Bi. The level energies and the reduced electric quadrupole transition probability B(E2) from the isomeric state are compared to large-scale shell-model calculations.


  • A. Gottardo
  • J. J. Valiente-Dobón
  • G. Benzoni
  • S. Lunardi
  • A. Gadea
  • A. Algora
  • N. Al-Dahan
  • G. de Angelis
  • Y. Ayyad
  • D. Bazzacco
  • J. Benlliure
  • P. Boutachkov
  • M. Bowry
  • A. Bracco
  • A. M. Bruce
  • M. Bunce
  • F. Camera
  • E. Casarejos
  • M. L. Cortes
  • F. C. L. Crespi
  • A. Corsi
  • A. M. Denis Bacelar
  • A. Y. Deo
  • C. Domingo-Pardo
  • M. Doncel
  • T. Engert
  • K. Eppinger
  • G. F. Farrelly
  • F. Farinon
  • E. Farnea
  • H. Geissel
  • J. Gerl
  • N. Goel
  • M. Górska
  • J. Grebosz
  • E. Gregor
  • T. Habermann
  • Robert Hoischen
  • R. Janik
  • P. R. John
  • S. Klupp
  • I. Kojouharov
  • N. Kurz
  • S. M. Lenzi
  • S. Leoni
  • S. Mandal
  • R. Menegazzo
  • D. Mengoni
  • B. Million
  • V. Modamio
  • A. I. Morales
  • D. R. Napoli
  • F. Naqvi
  • R. Nicolini
  • C. Nociforo
  • M. Pfützner
  • S. Pietri
  • Zs. Podolyák
  • A. Prochazka
  • W. Prokopowicz
  • F. Recchia
  • P. H. Regan
  • M. W. Reed
  • E. Sahin
  • H. Schaffner
  • A. Sharma
  • B. Sitar
  • D. Siwal
  • K. Steiger
  • P. Strmen
  • T. P. D. Swan
  • I. Szarka
  • C. A. Ur
  • P. M. Walker
  • H. Weick
  • O. Wieland
  • H-J. Wollersheim
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics


  • isomer decay, gamma-ray spectroscopy, RISING spectrometer, relativistic projectile fragmentation
Original languageEnglish
Article number034317
Number of pages6
JournalPhysical Review C (Nuclear Physics)
Issue number3
Publication statusPublished - 2014
Publication categoryResearch

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