Elastic scattering of X-rays by the electron density ρ(r); observed intensity I(Q) ∝ |F(Q)|² with structure factor F(Q) = Σ_j f_j e^{iQ·r_j}. Phase problem (lost in I = |F|²) resolved by direct methods, MAD/SAD phasing, or molecular…
Elastic scattering of X-rays by the electron density ρ(r); observed intensity I(Q) ∝ |F(Q)|² with structure factor F(Q) = Σ_j f_j e^{iQ·r_j}. Phase problem (lost in I = |F|²) resolved by direct methods, MAD/SAD phasing, or molecular…