Determination of (n,2n) reaction cross-section for 154Sm, 150Nd and 82Se at 14.6 MeV neutron energy

The (n,2n) reaction cross-sections of Sm-154, Nd-150 and Se-82 isotopes at 14.6 MeV neutron energy have been measured by neutron activation followed by off-line gamma-ray spectrometry with improved experimental methodology. The neutron flux was determined using the Au-197(n, 2n)Au-196(g) monitor reaction which has not been used earlier for cross-section measurement for the above mentioned nuclei. The measured reaction cross-sections are found to have good agreement with calculated cross-section data, obtained independently, using Talys and ENDF codes. A detailed comparison of the present cross-section data with the existing literature has been presented in this paper.

Automated summary

In this study, the (n,2n) reaction cross-sections of Sm-154, Nd-150 and Se-82 isotopes at 14.6 MeV neutron energy were measured using an improved experimental methodology. The measured cross-sections were found to be in good agreement with calculated data and were compared to existing literature.