Figure 4
High-resolution powder-diffraction pattern of zeolite ZSM-5 at 35 keV showing (red) standard processing (Section 3.1.2) and summing of channels, Rexp = 0.0168; (blue) processing exploiting the axial resolution of the Eiger detector (filtering on an intrinsic width of 0.003°) to correct the 2θ scale, Rexp = 0.0096; illustrating (a) the reduction in low-angle asymmetry and improvement in angular resolution; (b) the improvement in the statistical quality of higher angle data by taking a greater axial contribution into the summation (blue curve offset by +1000 for clarity). |