Bi209(d, p)Bi210Reaction at Low Bombarding Energies and with High Resolution

The ${\mathrm{Bi}}^{209}(d, p){\mathrm{Bi}}^{210}$ reaction has been studied with a multiple-gap magnetic spectrograph and an 8-MeV electrostatic accelerator. Forty energy levels were observed up to an excitation energy of 3.2 MeV. The ground-state $Q$ value was measured to be 2.369±0.010 MeV. The angular distribution of each group was peaked at an observation angle of 180 deg because of the large Coulomb barrier and relatively low bombarding energy, and the width of the backward peak depends weakly on the $l$ value of the captured neutron. There is good agreement concerning the shape of the angular distribution between the experimental data and calculations using distorted-wave, deuteron-stripping theory. The ground-state group belongs to a cluster of nine groups, one of which is probably two unresolved groups. These nine groups probably correspond to levels in the ${\mathrm{Bi}}^{210}$ ground-state configuration ($h_{\frac{9}{2}}{g}_{\frac{9}{2}}$). The intensities of these groups appear to be proportional to the statistical factor ($2J+1$).