Abstract
Nuclide ${}^{237}\mathrm{Th}$ has been produced via multinucleon transfer reactions by 60 MeV/nucleon ${}^{18}\mathrm{O}$ ion irradiation of natural uranium. Thorium was radiochemically separated from the mixture of uranium and reaction products. The activity of thorium was measured by using a HPGe detector. The ${}^{237}\mathrm{Th}$ has been identified by measuring the growth and decay of the $\ensuremath{\gamma}$ rays from its daughter ${}^{237}\mathrm{Pa}.$ The half-life of ${}^{237}\mathrm{Th}$ was determined to be $4.69\ifmmode\pm\else\textpm\fi{}0.60$ min. Not only is the new value in agreement with the earlier one of $5.0\ifmmode\pm\else\textpm\fi{}0.9$ min obtained in our previous work, but also its experimental precision was improved.
Published Version
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