. "http://www.iso.org/iso/catalogue_detail?csnumber=31897"^^ . . . "f" . "\\(f = \\frac{E_a}{E_e}\\), where \\(E_a\\) is the radiation amplitude scattered by the atom and \\(E_e\\) is the radiation ampliture scattered by a single electron."^^ . . "Atom Scattering Factor"@en . "http://reference.iucr.org/dictionary/Atomic_scattering_factor"^^ . "\"Atom Scattering Factor\" is measure of the scattering power of an isolated atom." .