DFMDEF18: A C-code for the double folding interaction potential of a spherical nucleus with deformed nucleus

This is a new version of the DFMDEF code published earlier. The new version is designed to obtain the nucleus–nucleus potential between two nuclei (one of which may be deformed) by using the double folding model (DFM). In particular the code enables to find the Coulomb barrier. The new version allows the user to employ his (her) own charge, proton, and neutron density distributions. The main functionalities of the original code (the nucleus–nucleus potential as a function of the incident angle and the distance between the centers of mass of colliding nuclei; the Coulomb barrier characteristics) have not been modified.