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In this study, production rates of 125,123 Xe and 133,131,129,128 Ba medical isotopes produced by 127 I(p, 3n) 125 Xe, 127 I(p, 5n) 123 Xe, 133 Cs(p, n) 133mg Ba, 133 Cs(p, 3n) 131mg Ba, 133 Cs(p, 5n) 129 Ba, and 133 Cs(p, 6n) 128 Ba reactions have been investigated up to 100 MeV incident proton energy. The preequilibrium calculations involve the hybrid model, the geometry-dependent hybrid model and the cascade exciton model. The calculated results are compared with the experimental data taken from the literature.

Abstract. The level density models and level density parameters are two of important quantities for describing the properties of nuclei. Especially, the level density parameter has an important role as input in calculation of reaction cross sections. In this study, the cross sections on 235 U(g,f) reaction were calculated for different level density models using the TALYS 1.6 code up to 20 MeV gamma incident energies. First, it was determined the level density model that was the closest to the experimental data. Secondly, cross sections obtained for different level density parameters of this model were compared with experimental data from the EXFOR database. Thus it was determined the best level density parameter fit to experimental data.

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