Cross-section measurements for (n, 2n) and (n, α) reactions on yttrium at neutron energies from 13.5 to 14.6 MeV

The cross sections for the reactions 89Y(n, 2n) 88m+gY and 89Y(n, α) 86m+gRB induced by 14 MeV neutrons have been measured using the activation technique and a coaxial HPGe γ-ray detector. Spectroscopically pure Y2O3 powder was used. Fast neutrons were produced by the T(d, n) 4He reaction. The neutron fluencies were determined using the monitor reaction 93Nb(n, 2n) 92mNb.