Abstract
High-spin states in the nucleus $^{183}\mathrm{Tl}$ have been studied using the recoil decay tagging and recoil tagging techniques. The data have enabled new structures to be identified which are believed to be based on prolate ${f}_{7∕2}$, ${h}_{9∕2}$, and oblate ${h}_{9∕2}$ configurations. In addition, the prolate ${i}_{3∕2}$ structure has also been extended. The systematics of the newly identified structures will be discussed. The $\ensuremath{\alpha}$ decay of $^{183}\mathrm{Tl}$ has also been investigated. Examination of both delayed and prompt $\ensuremath{\gamma}$ rays in coincidence with the prominent $6333\text{\ensuremath{-}}\mathrm{keV}$ $\ensuremath{\alpha}$ decay, together with an investigation of the effects of the summing of $L$ electrons, allow assignment of transitions and the construction of tentative low-spin decay schemes for $^{179}\mathrm{Au}$ and $^{175}\mathrm{Ir}$.
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