Determination of Mn-55(n,gamma)Mn-56 reaction cross-section at the neutron energies of 1.12, 2.12, 3.12 and 4.12 MeV

摘要

The Mn-55(n,gamma)Mn-56 reaction cross-sections at the neutron energies of 1.12, 2.12, 3.12 and 4.12 MeV were determined by using activation and off-line gamma-ray spectrometric technique. The neutron energies of 1.12 and 2.12 MeV were generated from the 7Li(p,n) reaction by using the proton energies of 3 and 4 MeV from the folded tandem ion beam accelerator (FOTIA) at BARC. For the neutron energies of 3.12 and 4.12 MeV, the proton energies used were 5 and 6 MeV from the Pelletron facility at TIFR, Mumbai. The In-115(n,gamma)In-116m reaction cross-section was used as the neutron flux monitor. The Mn-55(n,gamma)Mn-56 reaction cross-section at the neutron energies of 4.12 MeV are reported for the first time, whereas at 1.12, 2.12 and 3.12 MeV, they are in between the literature data. The Mn-55(n,gamma)Mn-56 reaction cross-section was also calculated theoretically by using the computer code TALYS 1.6 and EMPIRE 3.2.2. The experimental data of present work are found to be in between the theoretical values of TALYS and EMPIRE.