Thin target excitation functions for (α,xn) reactions on osmium targets for platinum radiotracer production

Thin- and thick-target excitation functions of 188,189,191Pt radionuclides were experimentally determined by cyclotron irradiation, using nuclear reactions natOs(α,xn) in the energy range up to 38 MeV with the Scanditronix-MC40 cyclotron of the Joint Research Centre-Ispra (Italy) of the European Union. Radionuclidic, radiochemical and chemical purities have been also measured by use of analytical and radioanalytical techniques. In this paper the result of the experimental thin target excitation functions of 188,189,191Pt radiotracers produced via natOs(α,xn) reactions are presented. Two stacks of thin osmium targets were irradiated at 38 and 28 MeV, respectively. Analytical fittings of the excitation functions are also presented. (author)