New aspect in employing magnetic anisotropic FeCo thin films as neutron polarizers

Daniel A. Korneev

doi:10.1117/12.130659

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23 November 1992 New aspect in employing magnetic anisotropic FeCo thin films as neutron polarizers

Daniel A. Korneev

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Proceedings Volume 1738, Neutron Optical Devices and Applications; (1992) https://doi.org/10.1117/12.130659
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The reverse of the beam polarization vector is the necessary procedure in carrying out the experiments by polarized neutrons. At the present time, a number of methods and set-ups (spin-flippers) are widely used in experiments by the thermal polarized neutrons. A new way to get the neutron beam polarization of a necessary sign during the process of neutron specular reflection from ferromagnetic anisotropic mirrors is proposed. The results of its check-up on a neutron polarized beam are given. The measured spin reverse probability by this method is near unity, and it does not practically depend on a neutron wavelength. The application of this method allows one to exclude the spin-flipper as an element of polarized neutrons set-ups.

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Daniel A. Korneev "New aspect in employing magnetic anisotropic FeCo thin films as neutron polarizers", Proc. SPIE 1738, Neutron Optical Devices and Applications, (23 November 1992); https://doi.org/10.1117/12.130659

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