Neutron activation cross sections for zirconium isotopes

New experimental cross sections me presented for Zr-90(n, alpha)Sr-87m. Zr-90(n, x)Y-89m, Zr-90(n, p)Y-90m. Zr-90(n. 2n)Zr-89. Zr-90(n. 2n)Zr-89m, Zr-91(n, n alpha)Sr-87m. Zr-91(n, x)Y-90m. Zr-91(n, p)Y-91m, Zr-92(n.x)Y-91m, Zr-92(n, p)Y-92. Zr-94(n. alpha)Sr-91, Zr-94(n, x)Y-93 and Zr-94(n, p)Y-94 reactions. These have been obtained with the activation technique using gamma-ray spectrometry and irradiations at the MINIM Van de Graaff laboratory. The new data were obtained in the energy range front 14 to 21 MeV In nearly all cases this work provides the first data above 15 MeV and for the Zr-92(n. x) Y-91m and Zr-91(n. n alpha)Sr-87m reactions no earlier data were reported The experimental results are compared with model calculations using the TALYS code to obtain it first indication of the impact of the new data on modeling of n + Zr reactions (C) 2009 Elsevier B.V. All rights reserved