Abstract
An analysis technique has been developed in order to mitigate energy summing due to sequential short-lived decays from nuclei implanted into a silicon detector. Using this technique, -decay spectroscopy of the isotones () and () has been performed. The energies of the particles emitted in the and ground-state-to-ground-state decays have been measured to be 8381(4) keV and 8818(13) keV, respectively. The half-lives of the ground states of and have been measured to be 25.99(10) and 10.4(4) , respectively. The half-lives of the ground states of the -decay daughters, and , have been measured to be 259(3) ns and 161(11) ns, respectively. Fine structure in the decay of has been observed for the first time, populating the 695-keV state in . The fine-structure decay has an -particle energy of 7715(40) keV and branching ratio .
- Received 22 July 2019
DOI:https://doi.org/10.1103/PhysRevC.100.044323
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