1. The process is then repeated with the new structure factor estimate. 2. The two sets of structure factors must be on the same scale. 3. It is essentially the Fourier transform of the intensities rather than the structure factors . 4. The structure factor is closely related to the intensity of the reflection it describes: 5. Confusingly, there are two different mathematical expressions in use, both called'structure factor '. 6. After crystallographic image processing, structure factor phase angles are far more reliable than structure factor amplitudes. 7. After crystallographic image processing, structure factor phase angles are far more reliable than structure factor amplitudes. 8. The physics of the system under study is buried in the " dynamic structure factor " 9. The refinement process continues by setting the new calculated structure factor to the observed structure factor value. 10. The refinement process continues by setting the new calculated structure factor to the observed structure factor value.