Off-specular scattering from a monodisperse distribution of long boxes.
The sample is made of very long boxes with length equal to $1000$ nm, width $20$ nm and height $10$ nm.
The particles are distributed along a one-dimensional lattice with a lattice spacing of $100$ nm in the $x$-direction.
The particles are rotated around the $z$-axis by $90^{\circ}$ so that their “infinite” dimension is parallel to the $y$-direction.
The incident wavelength is equal to 0.1 nm.
The output intensity is the result of an average over $\varphi_i$ comprised between $-1^{\circ}$ and $1^{\circ}$ and of a scan of $\alpha_i$ and $\alpha_f$ between $0^{\circ}$ and $10^{\circ}$.
The two-dimensional output intensity is plotted as a function of $\alpha_i$ and $\alpha_f$.