Open AccessCROSS-SECTIONS IN PHOTONUCLEAR REACTIONS WITH MULTIPLE NEUTRON EMISSION
Author(s) -
Oleg Bezshyyko,
O.M. Vodin,
L.O. Golinka-Bezshyyko,
Andrii Kotenko,
В.А. Кушнир,
Oleksii Lubynets,
В.В. Митроченко,
S. N. Olejnik,
S.A. Perezhogin,
Cynthia Vallerand
Publication year - 2019
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2019-124-144
Subject(s) - physics , neutron , nuclear physics , range (aeronautics) , dipole , atomic physics , resonance (particle physics) , nuclear reaction , energy (signal processing) , materials science , quantum mechanics , composite material
The energy dependence of the reaction cross-sections A(γ,xn)(A-xn) was studied in the energy range 19...70 MeV, i.e. beyond Great Dipole Resonance (GDR) region. Experimental data were taken from international database EXFOR for range of nuclear mases (55 < A < 209). Theoretical values of cross sections were obtained using TALYS-1.8 code. Several models of level densities with both enabled and disabled pre-equilibrium mechanism were considered in our simulations. Obtained results let us to make conclusions about different mechanisms of photonuclear reactions on certain nuclei, energy dependence of their relative contribution.