Figure 1
4BD configuration. (a) Diffraction geometry of the 006 main reflection in real space with the plane of incidence parallel to (010). K0 is the incidence wavevector, and K1 is the 006 reflection wavevector. The dashed circle indicates the diffraction cone of g1 formed by rotation of K0 and K1 around g1. (b) The Ewald sphere in reciprocal space. The four reciprocal lattice points 000, 006, 113 and are all on the Ewald sphere. g1 = = . |