Evaluation of Neutron Nuclear Data for Sodium-23

Abstract

Neutron nuclear data of 23 Na have been evaluated in the neutron energy region up to 20 MeV. Evaluated are the elastic and inelastic scattering, capture, (n, 2n), (n, p), (n, α), (n, np), (n, nα) reaction and γ -ray production cross sections, and the angular and energy distributions of neutrons and γ -rays. The evaluation is mainly based on nuclear model calculations. The pre-equilibrium and direct-reaction processes were taken into account in addition to the compound process. The evaluated data have been compiled into the latest version of JENDL, JENDL-3.3.

Investigation of neutron induced reactions on 23 Na by using Talys1.4

“…The 23 Na(n,2n) 22 Na of the neutron energies from 13.5 MeV to 38.5 MeV were also calculated by Uwamino et al using the NEUPAC codes, which prefers the data of the lowest group [26]. The 23 Na(n, 2n) 22 Na reaction was also evaluated by a statistical model [27], of which the result prefers the results of Menlove et al [12] and Filatenkov et al [9]. Rochman et al also investigated the 23 Na(n, 2n) 22 Na reaction using the Talys code, but the inputs parameters for the optical potential were adjusted to seek for the smallest group of the measured results [28].…”