Ground-state and isomeric-state cross-sections for 74Se(n,2n)73Se reaction in the 13-15 MeV energy region

Activation technique was applied for the measurement of ground-state and isomeric-state cross-sections in the Se-74(n,2n)Se-73 reaction within the 13-15 MeV neutron energy range to resolve inconsistencies in the existing database.. rays with energy of 253.7 keV from the decay of the (73)mSe isomeric-state and energy of 361.2 keV from the (73)gSe ground state were recorded using a high-resolution high-purity germanium (HPGe) detector. A monoenergetic neutron beam was produced via the T(d,n)He-4. The cross-sections and isomeric ratios were also calculated using the TALYS-1.95 nuclear model code with different six-level density options at neutron energies varying from the reaction threshold to 20 MeV. Results are discussed and also compared with some corresponding values found in the literature.