Figure 3 Diffraction ring coverage for several load rig rotations around ylab and zlab by angles ω and μ [cf. Fig. 1(a)]. Plots generated through ray tracing diffraction simulation of face-centred cubic lattice with a = 405 pm (aluminium) at an X-ray energy of 17 keV. Dots indicate that the beam is not obscured by the load frame. The detector position is 350 mm downstream parallel to xlab.