1986•Nuclear Science and EngineeringRequires access
Mass Distribution in the Fission of232Th by Degraded-Fission-Spectrum Neutrons
A. E. Richardson, Harold L. Wright, J. L. Meason, James R. Smith
Open publisher page 9 citations
Abstract
The mass-yield distribution of fission products following degraded-fission-spectrum neutron-induced fission of 232Th was measured by gamma spectrometry for 25 mass chains including mass 138 for the first time for fast fission. Cumulative yields for 83gSe and 130gSb were observed, the latter also for the first time for fast fission.In general, the yields for degraded-fission-spectrum neutron-induced fission of 232Th were slightly higher in the inner portions of both the heavy and light mass wings than for those from reactor-neutron-induced fission of 232Th. This was expected, since the average energy of degraded-fission-spectrum neutrons is slightly above that of reactor neutrons.