Properties of levels in ${}_{}{}^{241}{}_{}{}^{}\mathrm{Pu}$ and ${}_{}{}^{243}{}_{}{}^{}\mathrm{Pu}$ were determined by ($d,p$) and ($d,t$) reactions on targets of ${}_{}{}^{240}{}_{}{}^{}\mathrm{Pu}$ and ${}_{}{}^{242}{}_{}{}^{}\mathrm{Pu}$. The reactions ${}_{}{}^{240}{}_{}{}^{}\mathrm{Pu}(n,\gamma ){}_{}{}^{241}{}_{}{}^{}\mathrm{Pu}$ and ${}_{}{}^{241}{}_{}{}^{}\mathrm{Pu}(d,d^{\prime }){}_{}{}^{241}{}_{}{}^{}\mathrm{Pu}$ were also studied. On the basis of these data, single-particle assignments are made for levels in ${}_{}{}^{241}{}_{}{}^{}\mathrm{Pu}$ and ${}_{}{}^{243}{}_{}{}^{}\mathrm{Pu}$. Single-particle spectra, extracted from the data by means of a pairing-force calculation, are compared both with those of the isotonic nuclides and with the single-particle spectra calculated from a deformed Woods-Saxon potential.

• Received 24 April 1972

DOI:https://doi.org/10.1103/PhysRevC.6.1374