A Study of the Gamma Rays Associated with Selected Neutron-induced Radioactivities

Résumé du livre

It is the primary aim of this research to present as complete an evaluation as possible of the gamma rays having energies up to 1.5 Mev that are emitted by the excited states of various nuclei. The use of enriched isotopes and the proximity of the source of activation make it possible to investigate both short and long-lived radioactivities produced by neutron bombardment of the elements considered. By measuring the internal conversion electron and photoelectron line spectra, one obtains the energies of all prominent gamma-rays to within plus or minus 0.3%. Some exceptionally weak transitions above 600 kev are best observed with a scintillation counter or Geiger counter at the expense of accuracy.