Development of a "fission-proxy" method for the measurement of 14-MeV neutron fission yields

Relative fission-yield measurements were made for 50 fission products from 25.6 +/- 0.5 MeV alpha-induced fission of Th-232. Quantitative comparison of these experimentally measured yields with the evaluated fission yields from 14-MeV neutrons on U-235 demonstrates the application of the Bohr-independence hypothesis for measuring fission yields. As optimum particle-target configurations may be impossible or compromised at a given facility, this new approach, fission-proxy, allows the measurement of fission yields for a given compound nucleus from an alternate reaction pathway since formation and subsequent decay are independent processes.