Small-angle scattering curves of two parallel, infinitely long circular cylinders

Based on the small-angle scattering correlation function γ(r, s, d) of two parallel, infinitely long circular cylinders of diameter d, whose z-axes are separated by a distance s, scattering intensities I(h) have been determined numerically. As I(h) is not band limited, for the step from γ to I highly oscillating integrands result. Operating with the Mathematica function SequenceLimit[ ], I(h) and normalized Porod plots P1(h) have been obtained. The parameters d and s can be traced back to the behaviour of I(h). A comparison with the single cylinder case has been performed.