Measurement of the activation cross section for the (p,xn) reactions in niobium with potential applications as monitor reactions

Abstract

Excitation functions of the 93Nb(p,n)93mMo, 93Nb(p,pn)92mNb and 93Nb(p,αn)89Zr nuclear reactions were measured up to 17.4 MeV by the conventional activation method using the stacked-foil technique. Stacks were irradiated at different incident energies on the TR19/9 cyclotron at the Edmonton PET Centre. The potential of the measured excitation functions for use as monitor reactions was evaluated and tested by measuring activity ratios at a different facility. Single Nb foils were irradiated at incident energies in the range from 12 to 19 MeV on the TR19/9 cyclotron at Brookhaven National Laboratory. Results are compared with the published data and with theoretical values as determined by the nuclear reaction model code EMPIRE. © 2008 Elsevier B.V.