Excitation functions for Bi(α,2n)At, Bi(α,3n)At and Bi(α,4n)At reactions were calculated using TALYS-1.95 nuclear code from threshold to 50 MeV by invoking suitable options for level densities, nucleon-nucleus optical model potentials and alpha optical model potentials. Statistical factors were used to verify the quality of matching between theoretical model calculations and the experimental data from the EXFOR database. The TTY of At calculated using the excitation function of Bi(a,2n)At reaction is compared with existing experimental studies from literature The results of the present study are important for the validation of nuclear model approaches with increased predictive power for Bi(α,xn) reactions for the production of At.
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