Energy Levels ofSi30

Abstract
The distribution in range of the protons arising when aluminum is bombarded by 22-Mev alpha-particles, produced in the cyclotron, has been investigated. Seven groups of protons, having energies up to 17 Mev, have been measured. The energy levels of the resulting Si20 nucleus have been calculated and are found to be 0.0, (2.28), 3.49, 7.18, 8.20, 9.26, 9.87, and 10.86 Mev. Inelastic scattering of protons from aluminum has also been measured.