Inelastic Scattering of Protons byCa40

The inelastic scattering of protons by ${\mathrm{Ca}}^{40}$ was investigated with the MIT-ONR electrostatic generator and a 180-degree magnetic spectrograph. Bombarding energies from 6.54 to 8.15 Mev were used, targets were made of calcium, and the reaction angle was 90 degrees. Excited states of ${\mathrm{Ca}}^{40}$ were found at 3.348±0.004, 3.730±0.004, 3.900±0.004, 4.483±0.005, 5.202±0.008, 5.241±0.006, 5.272±0.006, 5.606±0.009, 5.621±0.008, 5.901±0.008, and 6.029±0.008 Mev.