The antiferromagnetic order of MnSi has been studied as function of te
mperature and applied magnetic held using small-angle neutron scatteri
ng. The results were analyzed using the three-dimensional resolution f
unction and the scattering cross-section to model the diffraction data
. Physical parameters related to the magnetic order, such as intensity
, direction/length of the modulation vector and the transverse correla
tion width were extracted.