Angular distributions and anisotropy of the fragments from neutron-induced fission of $^{233}$U and $^{209}$Bi in the intermediate energy range of $1$–$200$ MeV
Abstract:
New results of the neutron-induced fission experiments carried out at the neutron time-of-flight spectrometer GNEIS of the PNPI are given. Angular distributions of fission fragments from the neutron-induced fission of $^{233}$U and $^{209}$Bi nuclei have been measured in the energy range $1$–$200$ MeV using position sensitive multiwire proportional counters as fission fragment detector. The recent improvements of the measurement and data processing procedures are described. The data on anisotropy of fission fragments deduced from the measured angular distributions are presented in comparison with the experimental data of other authors.