The complete structure factor for an individual reflection h at wavelength is:
Note that the normal scattering component of the anomalous scattering atoms appears in more than one place in this equation; it is included in 0FT(h), in 0FAk(h), and in the explicit terms k. The reason for this is that we want to reformulate things in terms of the ratio of and to .
Now we will consider the simplest case, with only one type of anomalous
scattering atom, and express the magnitude of measured intensity
in terms of its components:
Note the important fact that all of the wavelength-dependence has been collected into the coefficients a(), b(), and c().