Figure 2: Scattering images and cross-correlation definition.
From: Two-dimensional structure from random multiparticle X-ray scattering images using cross-correlations
Three examples of the 3,751 different scattering images of the gold nanostructures of Fig. 1d, on a logarithmic colour scale. Superimposed are parameters pertinent (a) to the definition of the 1-point CC (equation (2)), (b) to the 2-point CC (equation (4)) and (c) to the 3-point CC (equation (6)). The red dashed circles indicate the azimuthal averages. The inset in a shows the experimental C(1)(q), whereby the green dashed curve is the subtracted background signal. The red bars correspond to q=0.1 nm−1.
