Figure 1
(a) Photograph of the diamond single-crystal plate. (b, c) Solid lines show the calculated angular dependence of degree of linear (PL) and circular (PC) polarizations for a perfect plane-wave X-ray at 14.4 keV. Blue dashed lines correspond to the phase difference δ. The phase plate is a 750 µm-thick C (111) crystal, used in the 220 symmetrical Laue case. (d, e) Calculated angular dependence of PL and PC for incident X-rays with three different angular divergences (ωh = 4.7′′, 7.5′′ and 15′′). |