  A modified version of the previously proposed exponential model with pairing
attenuation for the well deformed even-even nuclei has been applied to predict
the energy levels of doubly even actinide nuclei. Satisfactory results are
obtained by that model as compared with the experimental results. The
backbending phenomena are successfully described and discussed. A further
comparison with the main previous models has been undertaken to confirm its
validity in the heavy nuclei region.
