About bremsstrahlung of electrons passing through the multilayer structure of Coulomb centers and accelerated by a small homogeneous electric field

In the first Born approximation, the bremsstrahlung cross sections of electrons have been found and analyzed when electrons pass through an ordered multilayer structure of Coulomb centers and they are accelerated homogeneous electric field. The conditions of applicability of sections obtained previously in the literature tends to zero external field It is shown that the previously obtained cross sections corresponds to the frequency of the photon 10-2 coincide with the results of this work at afield strength more than 10-4 (atomic units).