Measurement of differential cross section for the Zn-64(n,alpha) Ni-61 reaction at 2.54, 4.00, and 5.50 MeV

By using a twin-gridded ionization chamber, differential cross-section data of the Zn-64(n,alpha)Ni-61 reaction were measured at neutron energies of 2.54, 4.00, and 5.50 MeV The experiment was performed at the 4.5-MV Van de Graaff accelerator of the Institute of Heavy Ion Physics, Peking University, China. Monoenergetic neutrons of 2.54 MeV were produced through the T(p,n)(3) He reaction with a solid Ti-T target, and those of 4.00 and 5.50 MeV were produced through the D(d,n)(3) He reaction with a deuterium gas target. The absolute neutron flux was determined through the U-238(n,f) reaction and a BF3 long counter was used as the neutron flux monitor. Results of the present work are combined with our previous data between 5.0 and 6.5 Me V and compared with other measurements and evaluations.Nuclear Science & TechnologySCI(E)EI0ARTICLE1123-12816