Development of neutron energy spectrum code using 7Li(p,n)7 Be reaction as neutron source and measurement of neutron capture cross-section on 70Zn near the inelastic scattering threshold

We studied the 7Li(p,n)7Be neutron spectra below the three-body breakup reaction threshold by developing a new deterministic neutron energy spectrum code Energy Proton Energy Proton-EPEN. To examine the approach near the threshold region, the code was validated by the available experimental data. Its predictions were also compared with the Monte Carlo based simulation codes PINO and SimLiT. For all users around the globe, EPEN is now freely available at Mizoram University website (epen.nhergmzu.com/epen/). The 70Zn(n,γ)71Znm reaction cross section have been measured for the first time at neutron energies 0.40 MeV and 0.70 MeV using standard activation technique. The experiment was carried out at BARCFOTIA. The data analysis was carried out using the latest decay data. Besides reporting new experimental values, we also gave a detail report on the uncertainty propagation and correlation coefficients between the measured cross sections at neutron energies 0.40, 0.70, 0.96 and 1.69 MeV where the two higher energies were reported in our previous work. Our experimentally determined 70Zn(n,γ)71Znm reaction cross sections at the four energies were compared with the theoretical predictions by TALYS-1.8. The predictions of 70Zn(n,γ)71Znm reaction cross sections at the four neutron energies by TALYS-1.8 are also compared with the predictions of TALYS1.6.