Characterization of low power research reactor neutrons for the validation of k0-INAA standardization based on k0-IAEA software

Abstract

Channel Bsite2 of Ghana research reactor-1 has been characterized for k0-INAA application. Cadmium ratio and bare multi-monitor were used to determine flux parameters using 0.1%Au-Al, Fe, and Zr wire as flux monitors. The parameters determined were 18.36±1.91, 0.0479±0.012, 5.12×1011±0.42×1011ncm-2s-1, 2.74×1010±0.14×1010ncm-2s-1, 7.73×1010±0.16×1010ncm-2s-1 and 16.75±1.58, -0.034±0.0028, 4.28×1011±1.71×1011ncm-2s-1, 2.55×1010±0.15×1010ncm-2s-1 respectively for thermal-to-epithermal flux ratio, alpha, thermal neutron, epithermal neutron and fast neutron flux using cadmium ratio and multi-monitor method accordingly. The k0-INAA performance assessment based on z-score distributions showed most results within |z| < 2. © 2013 Elsevier Ltd.