Gamma rays from some nuclear reactions: Gamma rays from the inelastic scattering of 14 Mev. neutrons in carbon-12, oxygen-16, and nitrogen-14
Thompson, Lewis Chisholm
Doctor of Philosophy
One of the ways to study the energy levels of nuclei is to measure the energy and relative intensity of the gamma rays produced when different kinds of nuclei disintegrate under charged particle bombardment. This may be of value for several reasons: (1) It may yield information on the manner an excited state decays to the ground state. (2) It may confirm the existence of energy levels for which there is some doubt. (3) Several different reactions may be competing. If the position of the energy levels of the product nuclei are fairly well known, the assignment of gamma rays may be made, and the relative probability for disintegration by various competing channels may be estimated. The gamma rays from most of the light nuclei under proton bombardment have been studied, but the gamma rays from the light nuclei under deuteron bombardment have not been studied so completely. Pair spectrometers, both internal and external, have been used to study the high energy gamma rays from deuteron reactions. The low energy gamma have been studied in the case of Li7 + d, Be9 + d, C12 + d, and C13 + d. In this investigation low energy gamma rays from a number of other light nuclei under deuteron bombardment were studied.