Proton Induced Reactions on Natural Se and Ag Targets for Producing 76, 77, 82Br and 107Cd Radioisotopes Using Low Energy Cyclotron

Abstract

Proton beam of energy 14.7MeV has been used to study the reactions cross-section and the excitationfunctions for the three radioisotopes of bromine namely, 76Br, 77Br, 82Br produced through the reaction ofproton with natural selenium and 107Cd formed through the reaction of proton with natural silver targets.Stacked foil technique was applied to measure the excitation functions. The energy degradation throughthe foils was calculated using a computer program “STACK”. The reactions cross-sections were studiedand discussed in the energy range from the reactions threshold energy up to 14.3 MeV. Proton inducedactivation cross-sections are needed to maximize the yield of the required product and to minimize theyields of the radioactive impurities. These studies are also important for the verification of the nuclearmodels which explain the reactions mechanism. Two theoretical codes namely, EMPIRE 3.2.2 and ALICEIPPEas well as the data obtained from TENDLE-2017 library were used to obtain the cross-section valueswhich were compared with the experimental results. Integral yields were also calculated and presented.