Abstract
If the phase of the structure factor are known, then the crystal structure is known.However the problem is that when we take the two wave diffraction experiments,we can only receive the intensity of the diffraction wave which is only proportional to the absolute magnitude of structure factors. It is so called X-ray phase problem. As can be seen,when the incident photon energy is close to absorption edge,the diffraction profile indeed changed, especially the (222) case . It means that the triplet phase is really changed.But when the incident photon energy was far from the absorption edge, the kinematical term is too strong that the asymmetrical profile of the dynamical term is overlaid by a symmetrical profile. It causes the triplet phase which we get from the fitting parameter approachesFinally, although we try a new method let the parameter “b” decomposed into the dynamical and kinematical term, but we are not sure that how far away from incident photon energy to absorption edge should be called as “non-resonant” .So, at beginning we adjust the parameter artificially, this action makes the result not convincible