Abstract:
In this work we have identified and studied the decay of two new microsecond isomers 19/2- and 23/2+ in 131Sb. This neutron-rich nucleus was produced by thermal neutron-induced fission of 241Pu. The detection is based on time correlation between fission fragments selected by the LOHENGRIN spectrometer at ILL (Grenoble) and the γ-rays or conversion electrons from isomers. These new data on high-spin states complete the level scheme previously obtained from β-decay. A large fraction of the members of the πg 7/2ν(h 11/2 -1 d 3/2 -1) and πg 7/2νh 11/2 -2 multiplets are now known and were compared with a multi-particle shell model calculation.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 7 June 2000 / Accepted: 19 September 2000
Rights and permissions
About this article
Cite this article
Genevey, J., Pinston, J., Faust, H. et al. New high-spin microsecond isomers in 131Sb. Eur Phys J A 9, 191–195 (2000). https://doi.org/10.1007/s100500070036
Issue Date:
DOI: https://doi.org/10.1007/s100500070036