Figure 4

Influence of the setup geometry on the dark-field signal. Semi-logarithmic plot of the dark-field (D) and transmission (T) signals’ dependence on (A) sample-to-detector distance and (B) diffuser-to-sample distance for a cubic sample containing an ensemble of glass (SiO\(_2\)) or PMMA spheres (\(f=0.05\), \(t={5}\,{\hbox {mm}}\) and \(d={4}\,{\upmu \hbox {m}}\)). The dashed and dotted gray lines indicate the theoretical dark-field and transmission signals calculated according to Eqs. (5) and (6).