Neutron diffraction optics of limited matter with a complicated magnetic structure

A model of a thin inhomogeneous magnetized to a depth is proposed to describe its neutron-optical, diffraction and polarizing properties. The mechanical method of calculation is developed, making it possible to find out a numerical solution of the Pauli equation for a neutron in such inhomogeneous matter with boundaries. This method permits in a unitary way the calculation of intensities and the polarization vector of a reflected beam in the wide range of conditions spanning the specular reflection and neutron diffraction. The method was applied to certain model structures, which can be calculated with a personal computer of the PC-AT type in few seconds for one value of a vector of falling neutrons. 18 refs.; 12 figs