The Rice Institute magnetic-lens pair spectrometer has been used to detect $\gamma$ radiation from the ${\mathrm{F}}^{19}(p, \alpha ){\mathrm{O}}^{16*}$ reaction. The $\gamma$-ray transition from the 8.88-Mev level in ${\mathrm{O}}^{16}$ to the ground state and the cascade $\gamma$ from this level to the 6.13-Mev state have been observed. Relative intensities of these $\gamma$ rays and the 7.12-Mev $\gamma$ ray are given. Gamma-ray spectra from ${\mathrm{Be}}^9$+$d$ were observed at 1.5-, 2.0-, 3.2-, and 4.0-Mev deuteron energies. Relative intensities of the 2.90-, 3.38-, 4.45-, and 5.99-Mev $\gamma$ radiation were determined. Excitation curves were obtained for the 3.38- and 5.99-Mev $\gamma$ rays from ${\mathrm{Be}}^{10*}$ between deuteron energies of 1.0 and 5.6 Mev. The relative intensities of the 3.58- and 2.86-Mev radiations from the 3.58-Mev level in ${\mathrm{B}}^{10*}$ were measured using the ${\mathrm{B}}^{10}(p, p^{\prime }){\mathrm{B}}^{10*}$ reaction. Other $\gamma$ radiation with energies of 0.43 Mev from ${\mathrm{B}}^{10}(p, \alpha ){\mathrm{Be}}^{7*}$, 0.72, 1.023, and 1.438 Mev from ${\mathrm{B}}^{10}(p, p^{\prime }){\mathrm{B}}^{10*}$, and 2.134 Mev from ${\mathrm{B}}^{11}(p, p^{\prime }){\mathrm{B}}^{11*}$ was observed.

• Received 8 July 1957

DOI:https://doi.org/10.1103/PhysRev.108.392