Coulomb Excitation of V, Ni, Ga, and Rb

The Coulomb excitation of several odd-$Z$ or odd-$N$ medium-weight nuclei has made possible the observation of the following gamma rays: ${\mathrm{V}}^{50}$, 226 kev; ${\mathrm{Ni}}^{61}$, 70, 282, and 657 kev; ${\mathrm{Ga}}^{69}$, 322 kev; ${\mathrm{Ga}}^{71}$, 513 kev; ${\mathrm{Rb}}^{85}$, 148 kev; ${\mathrm{Rb}}^{87}$, 407 kev. Values of the reduced transition probability for excitation are given for each of the above gamma rays. Level schemes are proposed based on coincidence studies and excitation curves. Bombardment of the enriched odd-$A$ isotopes of tin, ${\mathrm{Sn}}^{115}$, ${\mathrm{Sn}}^{117}$, and ${\mathrm{Sn}}^{119}$, produced no observable gamma rays.