Figure 1
Calculated Darwin curves of the symmetric DCM and the aDCM with different misaligned angles ΔΘ (the angle between the two sets of diffracting planes). ωi2 ≡ ωe1 + ΔΘ. The Darwin curves of the DCMs are for varying photon energy E with the relative orientations of the two crystals fixed. Si 111 reflection for E = 8.05 keV. σ-polarization. (a) Symmetric DCM. (b) aDCM with α = 12.22°. |