The calculations of neutron‐ and proton‐induced reaction up to 200 MeV for target 238U are performed; the calculated results are generally in good agreement with experimental data, and the physics is rational. The theoretical framework consists of the spherical optical model, intranuclear cascade mechanism for nucleon emission based on empirical formula, preequilibrium emission theory based on exciton model, evaporation model, and Hauser‐Feshbach statistical theory with a width fluctuation correction. The fission widths are calculated using the Bohr‐Wheeler formula.

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