238U(n, γ) 239U and 238 U(n, 2n) 237U reaction cross section measurement at En=13.5 MeV

The 238U(n, γ) and 238U(n, 2n) cross sections at an average neutron energy of 13.5 MeV has been measured using off-line γ-ray spectrometric technique. The neutrons were generated from 7Li(p, n)7Be reaction at the 14UD BARC-TIFR Pelletron facility at Mumbai. The experimentally determined 238U(n, γ) and 238U(n, 2n) reaction cross-sections from present work were compared with the evaluated data of ENDF/BVII and JENDL-4.0, JEFF-3.1 and CENDL-3.1. The 238U(n, γ) and 238U(n, 2n) reaction cross-sections were also calculated theoretically using the TALYS 1.2 computer code and were found to be in good agreement with the experiment. (author)