Figure 2
Far-field diffraction patterns in logarithmic scale for an Au hemispherical crystal (500 nm radius) at the Bragg angle, calculated using the kinematical diffraction model without (a) and with (b) the consideration of absorption/refraction effects, and the dynamical diffraction model (c). The energy is 7.5 keV and the reflection index is 002. (d) shows line intensity variations across the centre of these images (white dashed lines) in logarithmic scale. |