Gamma Radiation from Certain Nuclear Reactions

The gamma radiation from five nuclear reactions has been studied with a single NaI crystal. Three new resonances in the emission of 12-Mev radiation from the reaction ${\mathrm{F}}^{19}(p, \gamma ){\mathrm{Ne}}^{20}$ have been found at 1092-kev, 1324-kev, and 1431-kev bombarding energy. The widths are, respectively, 0.05 mb, 0.081 mb, and 0.19 mb, respectively. The first resonance corresponds to one in the reaction ${\mathrm{F}}^{19}(p, \alpha \gamma ){\mathrm{O}}^{16}$, whereas the last two do not. All the transitions are to the 1.63-Mev level in ${\mathrm{Ne}}^{20}$ or to a nearby level. Possible values of the spin and parity of the excited levels in ${\mathrm{Ne}}^{20}$ are discussed.