Cross-section measurements for theFe56(n,xnγ) reactions

Abstract

A measurement was performed at the white neutron source Geel Linear Accelerator (GELINA) of the Institute for Reference Materials and Measurements to determine the cross sections for the ($n$, ${n}^{\ensuremath{'}}\ensuremath{\gamma}$) and ($n$, $2{n}^{\ensuremath{'}}\ensuremath{\gamma}$) reactions on $^{56}\mathrm{Fe}$. The Gamma Array for Inelastic Neutron Scattering (GAINS) was used. The results are scaled to the neutron-induced fission cross section of ${}^{235}\mathrm{U}$. The paper emphasizes the multiple checks performed to assure the consistency of the results. $\ensuremath{\gamma}$ production cross sections, total inelastic cross sections, and level production cross sections were determined. A good agreement exists with previous measurements. Theoretical calculations were performed with the talys 1.6 reaction code using default parameters, but also using a microscopic approach. These calculations are discussed in comparison to the experimental data.