Isomeric States in the Light Tc Isotopes

Research output: Contribution to journalArticle


Preliminary results from the first experiment of the Stopped Beam RISING campaign are presented. The relativistic projectile fragmentation of a 750 MeV/u beam of Ag-107 populated isomeric states in very neutron deficient nuclei at the proton dripline around mass 80-90. Nuclei were unambiguously identified using the FRagment Separator (FRS) and its ancillary detectors located at GSI. The ions produced were slowed down from relativistic energies by means of an Al degrader and implanted in the centre of the high-efficiency Stopped RISING array. This allowed the identification of new excited states in the N = Z = 43 nucleus, Tc-86, populated following the de-excitation of a microsecond isomer. Preliminary results of this analysis, as well as previously unobserved isomeric states in Tc-87,Tc-88. are reported.


  • A. B. Garnsworthy
  • P. H. Regan
  • S. Pietri
  • L. Caceres
  • M. Gorska
  • Zs. Podolyak
  • S. J. Steer
  • A. Heinz
  • F. Becker
  • P. Bednarczyk
  • P. Doornenbal
  • H. Geissel
  • J. Gerl
  • H. Grawe
  • J. Grebosz
  • A. Kelic
  • I. Kojouharov
  • N. Kurz
  • F. Montes
  • W. Prokopwicz
  • T. Saito
  • H. Schaffner
  • S. Tachenov
  • E. Werner-Malento
  • H. J. Wollersheim
  • G. Benzoni
  • B. Blank
  • C. Brandau
  • A. M. Bruce
  • F. Camera
  • W. N. Catford
  • I. J. Cullen
  • Zs. Dombradi
  • E. Estevez
  • W. Gelletly
  • Robert Hoischen
  • G. Ilie
  • J. Jolie
  • G. A. Jones
  • A. Jungclaus
  • M. Kmiecik
  • F. G. Kondev
  • T. Kurtukian-Nieto
  • S. Lalkovski
  • Z. Liu
  • A. Maj
  • S. Myalski
  • M. Pfutzner
  • T. Shizuma
  • A. J. Simons
  • S. Schwertel
  • P. M. Walker
  • O. Wieland
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Pages (from-to)1265-1269
JournalActa Physica Polonica. Series B: Elementary Particle Physics, Nuclear Physics, Statistical Physics, Theory of Relativity, Field Theory
Issue number4
Publication statusPublished - 2007
Publication categoryResearch