Cross sections and forward/backward ratios in the laboratory reference system were measured for the 143 Nd(n,α) 140 Ce reaction at 4.0, 5.0, and 6.0 MeV and for the 147 Sm(n,α) 144 Nd reaction at 5.0 and 6.0 MeV. A twin-gridded ionization chamber and large-area back-to-back 143 Nd 2 O 3 samples and 147 Sm 2 O 3 samples were employed. Experiments were performed at the 4.5 MV Van de Graaff accelerator of Peking University, China. Fast neutrons were produced through the 2 H(d,n) 3 He reaction by using a deuterium gas target. A small 238 U fission chamber was employed for absolute neutron flux determination, and a BF 3 long counter was used as the neutron flux monitor. Present experimental data are compared with previous measurements, evaluations, and model calculations.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.