We have used the ${}_{}{}^{209}{}_{}{}^{}\mathrm{Bi}$(t,2n${)}^{210}$Po reaction with standard in-beam γ-ray and conversion-electron spectroscopic techniques to study the two-proton states in ${}_{}{}^{210}{}_{}{}^{}\mathrm{Po}$. With the possible &, all states of the proton ${\mathit{h}}_{9/2}^2$, ${\mathit{h}}_{9/2}$${\mathit{f}}_{7/2}$, ${\mathit{f}}_{7/2}^2$, and ${\mathit{h}}_{9/2}$${\mathit{i}}_{13/2}$ configurations have been identified. The level energies agree within 100 keV, typically, with results from shell-model calculations. Relative intensities of M1 and E2 γ transitions from the $h_{9/2}$$f_{7/2}$ and $f_{7/2}^2$ configurations are compared with calculated intensities. Published experimental single-proton transition matrix elements were used for the calculations, which were performed both for pure and for mixed states. The results indicate admixture amplitudes of only a few percent or less into the main components of the wave functions.

• Received 14 March 1988

DOI:https://doi.org/10.1103/PhysRevC.38.74