Magnetic Layer in Neutron Wave Resonator

Expressions for the neutron density and the neutron reflection amplitude are given in the case of a non-collinear magnetic layer inside of the neutron wave resonator subject to a static or a rotating magnetic fields. It is shown that the enhancement of the spin-flip reflection intensity and density of neutrons in opposite to initial spin state are enhanced in second and third degree relatively of enhancement of neutron density in the initial spin state, correspondently. Conditions are defined for high sensitive measurements of the magnetic layer parameters.