Levels inBi210from theBi209(d, p)Reaction

$Q$ values and differential cross sections have been measured for nuclear states in ${\mathrm{Bi}}^{210}$ excited by the ${\mathrm{Bi}}^{209}(d, p)$ reaction. A previously unobserved group with $Q=2.35\mathrm{}\pm 0.03$ Mev has been found, corresponding to a state with probable proton-neutron assignment ($h_{\frac{9}{2}}{g}_{\frac{9}{2}}$). The observed $Q$ value for this state is in good agreement with the $Q$ value expected for the 1 - ground state of RaE. Groups of states with mean excitation of 0.41, 0.88 and 1.4, 2.02, 2.56, 2.81, 3.15, and 4.03 Mev have been found, and neutron assignments of $g_{\frac{9}{2}}$, $i_{\frac{11}{2}}$, $d_{\frac{5}{2}}$, $s_{\frac{1}{2}}$, $g_{\frac{7}{2}}$, $d_{\frac{3}{2}}$, and ($h_{\frac{11}{2}}$) have been suggested. A comparison with theoretical calculations by Newby and Konopinski for the ($h_{\frac{9}{2}}{g}_{\frac{9}{2}}$) group of states gives further support to their observation that a calculation of levels in the neighborhood of ${\mathrm{Pb}}^{208}$ is far less accurate when the extra-core interaction type is proton-neutron than when it is neutron-neutron or proton-proton.