Evaluation of Gamma-Ray Production Cross-Sections for Inelastic Neutron Interaction with Aluminum and Lead

Abstract

Evaluation of integral gamma-ray production cross-sections in the energy interval Ey=0.5-1 0.0 MeV for inelastic neutron interaction with Al and Pb nuclei are performed. Also for Al the cross-sections for production of discrete gamma rays with the energy Ey=791, 843, 952, 984, 1013Ey=791, 843, 952, 984, , 1692Ey=791, 843, 952, 984, , 1719Ey=791, 843, 952, 984, , 1809Ey=791, 843, 952, 984, ,2210 and 2980+3001 keV were obtained. Gamma-ray production cross-sections were evaluated in the neutron energy range En=1.0-18.8 MeV, and discrete gamma-lines in the neutron energy range 1-16 MeV. The evaluation is carried out with approximation on the basis of cubic splines. Parameters of the latter were defmed using the maximum likelihood method with regard to systematic and statistical errors. Results obtained were compared with analogous data from the evaluated neutron data libraries JENDL-3.2, ENDFIB-VI, and others.