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

Document Type : Original Article

Authors

1 Cyclotron Project, Atomic Energy Authority

2 Cyclotron Project, Atomic Energy Authority, Egypt

3 Physics Department, Azhar University

4 cyclotron project, atomic energy authority

Abstract

Proton beam of energy 14.7MeV has been used to study the reactions cross-section and the excitation
functions for the three radioisotopes of bromine namely, 76Br, 77Br, 82Br produced through the reaction of
proton 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 through
the foils was calculated using a computer program “STACK”. The reactions cross-sections were studied
and discussed in the energy range from the reactions threshold energy up to 14.3 MeV. Proton induced
activation cross-sections are needed to maximize the yield of the required product and to minimize the
yields of the radioactive impurities. These studies are also important for the verification of the nuclear
models which explain the reactions mechanism. Two theoretical codes namely, EMPIRE 3.2.2 and ALICEIPPE
as well as the data obtained from TENDLE-2017 library were used to obtain the cross-section values
which were compared with the experimental results. Integral yields were also calculated and presented.

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