Spin echo small-angle neutron scattering using superconducting magnetic Wollaston prisms

Journal article (2024)

Authors

F. Funama Oak Ridge National Laboratory
Caitlyn M. Wolf National Institute of Standards and Technology
Katie Weigandt National Institute of Standards and Technology
Jiazhou Shen Indiana University - Purdue University
S.R. Parnell Rutherford Appleton Laboratory, RID/TS/Instrumenten groep
Fankang Li Oak Ridge National Laboratory
Research Group
RID/TS/Instrumenten groep
More Info
expand_more

Published Date

2024

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Research Group

RID/TS/Instrumenten groep

Abstract

We show the implementation of superconducting magnetic Wollaston prisms for spin echo small-angle neutron scattering. Two calibration methods for the spin echo length are presented: one utilizing spin echo modulated small-angle neutron scattering and the other based on the neutron refraction by quartz wedge crystals. Our experimental results with polystyrene nano-particle colloids showcase the system’s efficacy in measuring both dilute and concentrated colloidal systems. Additionally, investigations into the pore diameter and pitch of a nano-porous alumina membrane demonstrate its capability in analyzing nano-porous materials. Furthermore, we discuss potential optimizations to further extend the accessible spin echo length.

Files

073709_1_5.0217884.pdf
(pdf | 5.6 Mb)
Unknown license
warning

File under embargo until 17-01-2025