Figure 3
Maps of the X-rays fluorescence count ratios. Panels (a), (b) and (c) show Cu(Kα)/Bi(Lα), Sr(Kα)/Bi(Lα) and Cu(Kα)/Sr(Kα) normalized XRF count ratios, respectively. Panel (d) clarifies the Ag distribution. Panel (e) shows the SEM image of the same sample region: the red rectangle defines the beam dimension. The a- and b-axes are also shown, with the c-axis pointing out of the plane of the paper. |