2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/26374This work reports the incompatibility of the Stokes relation for time reversibility of wave's propagation and the usage of complex atomic form-factor in diffraction theories. The implications behind a diffraction theory that obeys the Stokes relation is discussed.Version 2 has experimental results. 9 pages and 9 figuresMaterials Sciencetext