Abstract
Microsecond isomers of neutron-rich nuclei in the mass $A=95$ chain were investigated at the ILL reactor in Grenoble. These nuclei were produced by thermal-neutron induced fission of $^{241}\mathrm{Pu}$. The detection is based on time correlation between fission fragments selected by the Lohengrin mass spectrometer and the \ensuremath{\gamma} rays from the isomers. In this article, the decay scheme of an isomer of half-life 1.4(2) $\ensuremath{\mu}$s in $^{95}\mathrm{Kr}$ is reported. It is the first time that excited states of this nucleus have been measured. These data show that this neutron-rich $N=59$ isotone is spherical at low excitation energy.
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