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In this work the nuclear level density parameters of  238 U have been extracted in the back-shifted Fermi gas model (BSFGM), as well as the constant temperature model (CTM), through fitting with the recent experimental data on nuclear level densities measured by the Oslo group. The excitation functions for  238 U(p,2n α ) 233 Pa, and  238 U(p,4n) 235 Np reactions and the fragment yields for the fragments of the  238 U(p,f) reaction have been calculated using obtained level density parameters. The results are compared to their corresponding experimental values. It was found that the extracted excitation functions and the fragment yields in the CTM coincide well with the experimental values in the low-energy region. This finding is according to the claim made by the Oslo group that the extracted level densities of  238 U show a constant temperature behaviour.

Studying Nuclear Level Densities of 238 U in the Nuclear Reactions within the Macroscopic Nuclear Models