Open AccessISOMER RATIOS IN PHOTONUCLEAR REACTIONS WITH MULTIPLE NEUTRON EMISSION
Author(s) -
O.M. Vodin,
В.В. Митроченко,
Oleg Bezshyyko,
L.O. Golinka-Bezshyyko,
S. N. Olejnik,
S.A. Perezhogin,
І. Каденко,
В.А. Кушнир,
Cynthia Vallerand,
Andrii Kotenko,
Oleksii Lubynets
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 - 10.46813/2019-121-038
Subject(s) - neutron , physics , range (aeronautics) , nuclear physics , dipole , atomic physics , resonance (particle physics) , work (physics) , nuclear reaction , materials science , thermodynamics , quantum mechanics , composite material
The aim of this work is studying of gamma-quanta energy dependence of isomeric ratios in A(γ,xn)m,g(A − xn) reactions in energy range 35...100MeV , i.e. beyond Great Dipole Resonance (GDR) region. Experimental data were taken from international database EXFOR for a wide range of nuclear mases (55 < A < 181). Theoretical values of isomeric ratios 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 dierent mechanisms of photonuclear reactions on certain nuclei, energy dependence of their relative contribution.