  Based on Brown's static equations of micromagnetics, we compute the uniaxial
polarization of the scattered neutron beam of a bulk magnetic material. The
theoretical expressions are compared to experimental data on a soft magnetic
nanocrystalline alloy. The micromagnetic SANS theory provides a general
framework for polarized real-space neutron methods, and it opens up a new
avenue for magnetic neutron data analysis on magnetic microstructures.
