Inelastic Scattering of Protons from Light Nuclei

An investigation has been made of inelastic scattering of 7.4-Mev protons at 90° from the following thin foil targets: Be, ${\mathrm{C}}^{12}$, ${\mathrm{C}}^{13}$ (47 percent enriched), Ca${\mathrm{F}}_2$, Ni, Al, and Na, and from the following gas targets: normal B${\mathrm{F}}_3$, enriched ${\mathrm{B}}^{10}$ ${\mathrm{F}}_3$ (96 percent), ${\mathrm{N}}_2$, ${\mathrm{O}}_2$, C${\mathrm{H}}_4$, and Ne. The following energy levels in Mev were observed: ${\mathrm{Be}}^9$ 2.57; ${\mathrm{B}}^{10}$ 2.34; ${\mathrm{B}}^{11}$ 2.06; ${\mathrm{C}}^{12}$ 4.59; ${\mathrm{C}}^{13}$ 3.14, 4.03; ${\mathrm{N}}^{14}$ 2.35, 3.95; ${\mathrm{O}}^{16}$ none; ${\mathrm{F}}^{19}$ 1.53, 3.83; Ne 1.44, 4.36; ${\mathrm{Na}}^{23}$ 3.67; Al 1.02, 2.30, 2.89, 3.32, 4.48; Ni 1.44.