"Neutron spin-filter with spin-exchange interaction of 3He nuclei and the atoms of a saturated ferromagnetic"
V.R. Skoy

The model of a spin - exchange interaction between the nuclear magnetic moment of 3Не and the magnetic moments of electrons in a ferromagnetic is proposed. If a ferromagnetic is saturated an interaction leads to a gradual rising of 3Не nuclear polarization inside a volume surrounded by this ferromagnetic. The conditions for a practical implementation of a neutron spin filter with the polarized 3Не nuclei are considered, as well as the variants of its design.