Development of a portable high-Tc spherical neutron polarimetry device at the Oak Ridge National Laboratory

Development of a portable high-Tc spherical neutron polarimetry device at the Oak Ridge National Laboratory

Abstract Spherical neutron polarimetry is a powerful polarized neutron scattering technique used to determine complex magnetic structures which are only partly accessible by other methods. This technique measures the full neutron polarization change upon scattering from a sample by fully decoupling...

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Bibliographic Details
Main Authors: Nicolas Silva, Tianhao Wang, Sichao Fu, Masaaki Matsuda, Barry Winn, Elynn An, James Beare, Lowell Crow, Kiman Park, Chenyang Jiang
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
Subjects:
Polarized neutron scattering
Spherical neutron polarimetry
Larmor precession
Adiabatic transition
Meissner effect
Online Access:https://doi.org/10.1038/s41598-025-02279-2
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Summary:Abstract Spherical neutron polarimetry is a powerful polarized neutron scattering technique used to determine complex magnetic structures which are only partly accessible by other methods. This technique measures the full neutron polarization change upon scattering from a sample by fully decoupling the incoming and outgoing neutron polarization with a zero-field chamber placed at the sample position. Recent advancements and testing are presented for a new spherical neutron polarimetry device utilizing high-Tc superconducting YBCO films, PHiTPAD, at the High Flux Isotope Reactor at Oak Ridge National Laboratory. Furthermore, we introduce a conceptual design that utilizes wavelength-independent adiabatic transitions to adapt spherical neutron polarimetry for use with pulsed neutron sources, thereby expanding its potential applications in neutron scattering research.
ISSN:2045-2322

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