Gamma Rays from the Inelastic Scattering of 14-Mev Neutrons inC12andO16

A NaI scintillation spectrometer has been used to study the gamma rays produced by the inelastic scattering of 14-Mev neutrons in carbon and oxygen. The scattering material was placed around the neutron source with the gamma-ray detector outside the scatterer. A gamma ray from the 4.43-Mev level in ${\mathrm{C}}^{12}$ was obtained with a cross section of about 0.3 barn. Gamma rays from the known level at 6.13 Mev and levels close to 7 Mev were obtained from ${\mathrm{O}}^{16}$ with a total cross section of about 0.2 barn.