Cross Sections for the exp 66 Zn(N,p) exp 66 Cu, exp 113 in(N,N')/Sup113m/in and exp 115 in(N,N')/Sup 115M/in Reactions from Near Threshold to 10 Mev

摘要

Activation techniques were used in the measurement of cross sections for the exp 66 Zn(n,p) exp 66 Cu, exp 113 In(n,n')/sup 113m/In and exp 115 In(n,n')/sup 115m/In reactions from near threshold to 10 MeV. The exp 7 Li(p,n) exp 7 Be and D(d,n) exp 3 He reactions were employed as sources of approximately monoenergetic neutrons. Neutron fluence was measured with a fission chamber which contained calibrated uranium deposits enriched in exp 235 U or exp 238 U. Gamma-ray activities of the irradiated samples were measured with NaI(Tl) scintillation and Ge(Li) detectors. The raw data were corrected for various experimental effects including activity decay, detector efficiencies, geometry, absorption, multiple scattering, internal conversion, deadtime, sum coincidences, and sample and uranium deposit properties. The response of the monoenergetic cross section data in reference neutron fields characteristic of thermal fission of exp 235 U and spontaneous fission of exp 252 Cf was numerically investigated. The results of our work are compared with corresponding information reported in the literature. (9 figures, 12 tables).