부산대학교 도서관

We measured neutron cross-sections of various threshold reactions usingdifferent quasi-monoenergetic sources in the range 17 - 94 MeV. Ourmotivation comes from the ``Energy plus Transmutation project'', in whichAl, Au, Bi, In, Ta, Co, Y foils are used to measure the flux of high energyneutrons produced in spallation reactions. Unfortunately, no experimentalcross-section data for observed threshold (n,xn) reactions are available atneutron energies above 20 MeV.We performed 11 measurements of the (n,xn) cross-sections using the neutronsource at NPI ASCR cyclotron in ??and at TSL cyclotron in Uppsala(EFNUDAT program). Quasi-monoenergetic neutrons from p+Li reactionirradiated above mentioned foils. Irradiated foils were measured on HPGedetectors and spectroscopic corrections were applied to obtain cross-sectiondata. A comparison with TALYS cross-section calculations was performed.