Effective stopping of fast heavy highly charged structure ions in collisions with complex atoms

The nonperturbative theory of the energy losses of fast heavy highly charged structure ions colliding with neutral complex atoms is developed with allowance for simultaneous excitations of the electron shells of an ion and an atom. Formulas for effective stopping that are similar to the Bethe-Bloch formulas have been derived. As an example, the energy losses of partially stripped uranium ions colliding with argon atoms are calculated.