Measurements of the ¹²⁸Te(n, 2n)^127m,gTe reaction cross sections and isomeric cross section ratio of ^127m,gTe at the neutron energy of 14 MeV*

Abstract In this study, measurements of the 128 Te( n , 2 n ) 127m,g Te reaction cross sections and the computation of the isomeric cross section ratio were performed around the neutron energy of 13−15 MeV. We used a γ-ray spectrometric technique to conduct the measurements. The neutron energy was produced by the 3 H( d , n ) 4 He reaction. For the 128 Te( n , 2 n ) 127m,g Te reaction, the excited state, ground state, total cross section, and isomeric cross section ratio were determined using the TALYS-1.96 code, a theoretical nuclear model that allows for variations in density options. The initial experimental data, assessed nuclear data, and theoretical calculations based on the TALYS-1.96 algorithm were compared with the measurement results. The new data produced by this study are essential for validating nuclear models and establishing parameters for nuclear reactions.