Eur. Phys. J. Plus (2021) 136: 532
https://doi.org/10.1140/epjp/s13360-021-01449-1

Regular Article

Study of (n, 2n) reaction cross sections for ¹⁰⁷Ag within the energy range of 9–22 MeV

¹ Department of Physics, Faculty of Science, The M. S. University of Baroda, 390002, Vadodara, India
² Institute for Plasma Research, 382428, Gandhinagar, India
³ Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai, India
⁴ Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
⁵ Department of Electrical Power Engineering, Brno University of Technology, 61600, Brno, Czech Republic

^a rakeshphysics@gmail.com

Received: 6 February 2021
Accepted: 16 April 2021
Published online: 14 May 2021

Abstract

The ¹⁰⁷Ag(n, 2n)^106mAg reaction cross sections at the neutron energies of 10.50 ± 0.68, 13.52 ± 0.67, 16.86 ± 0.58 and 19.86 ± 0.59 MeV were measured by using the off-line γ-ray spectroscopy and activation analysis techniques. The ⁷Li(p, n) reaction was used to produce the high-energy quasi-monoenergetic neutrons with the proton beam from the 14UD BARC-TIFR Pelletron facilities at Mumbai, India. The neutron flux was monitored using the standard ²⁷Al(n, α)²⁴Na monitor reaction. The detailed uncertainties analysis in the measured cross sections was performed using the covariance analysis. The cross sections were also theoretically calculated using TALYS-1.9 code from 10 to 25 MeV energies. The measured cross-sections data are compared with the evaluated data from TENDL-2019, JENDL-4.0 and ENDF/B-VIII.0 libraries as well as with the existing experimental data available in EXFOR compilation. Our data show good agreement with some of the previous experimental data and with the theoretical values calculated with TALYS-1.9 code. Present work will provide better description of level density models and pre-equilibrium process.