Gamma Rays from the Reactions ${\mathrm{Be}}^9(\alpha , n\gamma ){\mathrm{C}}^{12}$, ${\mathrm{C}}^{13}(d, p\gamma ){\mathrm{C}}^{14}$, ${\mathrm{N}}^{14}(d, p\gamma ){\mathrm{N}}^{15}$, and ${\mathrm{N}}^{14}(d, n\gamma ){\mathrm{O}}^{15}$

A magnetic-lens pair spectrometer has been used to study the radiations produced by the bombardment of certain light nuclei with $\alpha$ particles and deuterons from The Rice Institute Van de Graaff accelerator. From the bombardment of ${\mathrm{Be}}^9$ with 4.3-Mev $\alpha$ particles a single $\gamma$ ray was observed at 4.48±0.06 Mev, doppler corrected. No 7.6-Mev nuclear pair line was observed with an intensity as great as 5% that of the 4.48-Mev internal pair line. No 3.2-Mev $\gamma$ radiation was observed with an intensity as great as 8% that of the 4.48-Mev $\gamma$ ray. A comparison of the internal and external pair spectra from the ${\mathrm{C}}^{13}(d, p\gamma ){\mathrm{C}}^{14}$ reaction has been made to obtain information on the multipolarities of the 6.1 - and 6.7-Mev $\gamma$ rays from ${\mathrm{C}}^{14}$. If the 6.1-Mev $\gamma$ ray is assumed to be $E1\mathrm{}$, the relative intensities of the 6.1 and 6.7-Mev lines suggest that the 6.7-Mev $\gamma$ ray is $E2\mathrm{}$; however, other multipoles such as $E1\mathrm{}$, $M1\mathrm{}$, and $E3\mathrm{}$ cannot be excluded. A study of the $\gamma$ rays from the reactions ${\mathrm{N}}^{14}(d, p\gamma ){\mathrm{N}}^{15}$ and ${\mathrm{N}}^{14}(d, n\gamma ){\mathrm{O}}^{15}$ shows that the ($d, p$) cross section is 2.6 times larger than the ($d, n$) cross section at 2.4-Mev bombarding energy, whereas the two cross sections are about equal at 5.3-Mev bombarding energy.