There is need to understand the structure of hard-sphere dispersions u
nder flow in order to develop models for colloid rheology since change
s in structure are related to non-Newtonian behaviour. Small-angle neu
tron scattering (SANS) data for polymer lattices, behaving as nearly h
ard spheres, at shear rates through the region of the shear thinning a
re presented. Intensity distributions from these new and detailed low-
angle scattering experiments am compared with the intensities calculat
ed directly from computer simulations employing a Rouse model.