Accurate Mass Determination of Neutron-Deficient Nuclides Close to Z=82 with ISOLTRAP

  • S. Schwarz
  • , F. Ames
  • , G. Audi
  • , D. Beck
  • , G. Bollen
  • , J. Dilling
  • , F. Herfurth
  • , H. J. Kluge
  • , A. Kellerbauer
  • , A. Kohl
  • , D. Lunney
  • , R. B. Moore
  • , H. Raimbault-Hartmann
  • , C. Scheidenberger
  • , G. Sikler
  • , J. Szerypo

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The recent implementation of gas-filled radiofrequency traps for efficient ion beam bunching extended the applicability of the Penning trap mass spectrometer ISOLTRAP/CERN to non-surface ionizable species. In a first series of successful runs the masses of 182–197Hg, 196,198Pb, 197Bi, 198Po and 203At have been determined with an accuracy of 1⋅10−7. In order to unambiguously determine the ground state mass the ground and isomeric states of 185,187,191,193,197Hg were separated applying a resolving power of up to 3.7⋅106. First experimental values for the isomeric excitation energy of 187,191Hg were obtained.

Original languageEnglish
Pages (from-to)335-338
Number of pages4
JournalHyperfine Interactions
Volume132
Issue number1-4
DOIs
StatePublished - Jan 28 2001
Externally publishedYes

Keywords

  • Penning trap
  • atomic masses
  • mass spectrometry
  • radioactive nuclides

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