Measurements of cross-sections of (n,xn) threshold reactions in various materials

¹ Nuclear Physics Institute of the Academy of Sciences, Řež near Prague, Czech Republic
² Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Czech Republic

^a e-mail: vrzalova@ujf.cas.cz

Abstract

Experimental cross-section data for (n,xn) reactions with x higher than four and neutron energies over ~30 MeV are very scarce. We performed seven successful (n,xn) cross-section measurements in two campaigns exploiting the quasi-monoenergetic neutron source at The Svedberg Laboratory in Uppsala, Sweden. Neutron energies from the ⁷Li(p,n)⁷Be based source were in the region 22 to 94 MeV. We carried out additional five irradiations with neutron energies from 17 up to 34 MeV using the quasi-monoenergetic neutron source of the Nuclear Physics Institute in Řež. We have irradiated Al, Au, Bi, I, In, Ta and Y materials in the form of thin foils. We observed good agreement with the few existing experimental data about corresponding cross-sections in EXFOR database and also with the calculations performed in deterministic code TALYS.