Figure 2
k3-Weighted EXAFS spectra derived from 4 wt% Pd/Al2O3 in 100 ms as a function of vertical beam size: (a) under-bending the mirror to a VBH of 260 µm; (b) VBH at ideal focus = 100 µm; (c) over-bending of the mirror to yield a beam height of 300 µm. Dashed lines are from theoretical fitting using EXCURV. |