Energy Levels in Chromium-52

The excited states of ${\mathrm{Cr}}^{52}$ have been studied through the ${\mathrm{Mn}}^{55}(p, \alpha ){\mathrm{Cr}}^{52}$ reaction and by an investigation of inelastic proton scattering from chromium. A 6.51-Mev proton beam from an electrostatic generator and a high-resolution magnetic spectrograph were used. Excited states in ${\mathrm{Cr}}^{52}$ were found at 1.433, 2.368, 2.648, 2.767, 2.965, and 3.161 Mev. The $Q$-value for the ground-state transition in ${\mathrm{Mn}}^{55}(p, \alpha ){\mathrm{Cr}}^{52}$ is 2.568±0.008 Mev.