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Development and first results of a magnetic sample environment for polarized neutron imaging of thin metal sheets

Backs, Alex LU orcid ; Sebold, Simon ; Busi, Matteo ; Lee, Wai Tung ; Strobl, Markus LU and Orlov, Dmytro LU orcid (2023) European Conference on Neutron Scattering 2023 In EPJ Web of Conferences 286.
Abstract
Polarized neutron imaging brings the great advantage of analyzing bulk magnetic properties with good spatial resolution. The technique is based on the interaction of the neutron spin with magnetic samples or free magnetic fields and observing the changes to a spin-polarized neutron beam. The high sensitivity to even small magnetic fields is a benefit in obtaining magnetization information but simultaneously a challenge in instrumentation, since magnetic environments for the polarized neutron beam and for the sample, as well as the fringe field from the magnetic sample itself all affect the measurement and can give rise to unwanted effects. We have used finite element simulations and ray tracing simulations, to design and analyze a magnetic... (More)
Polarized neutron imaging brings the great advantage of analyzing bulk magnetic properties with good spatial resolution. The technique is based on the interaction of the neutron spin with magnetic samples or free magnetic fields and observing the changes to a spin-polarized neutron beam. The high sensitivity to even small magnetic fields is a benefit in obtaining magnetization information but simultaneously a challenge in instrumentation, since magnetic environments for the polarized neutron beam and for the sample, as well as the fringe field from the magnetic sample itself all affect the measurement and can give rise to unwanted effects. We have used finite element simulations and ray tracing simulations, to design and analyze a magnetic sample environment devised for the measurement of ferromagnetic metal sheets. Here we show an analysis of performance of the experimental setup based on the simulation results and compare them to first experimental results on a grain oriented silicon steel sample. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
EPJ Web of Conferences
volume
286
article number
05003
publisher
EDP Sciences
conference name
European Conference on Neutron Scattering 2023
conference location
Garching, Germany
conference dates
2023-03-20 - 2023-03-23
ISSN
2100-014X
DOI
10.1051/epjconf/202328605003
project
Neutron Polarisation Capability Development for User Experiment Applications on ESS Instruments
Polarisation for first science and beyond at the ESS
language
English
LU publication?
yes
id
c31a1af1-2e55-4901-b8c8-e38dfdb4d130
date added to LUP
2023-10-24 21:06:03
date last changed
2024-01-12 02:46:14
@article{c31a1af1-2e55-4901-b8c8-e38dfdb4d130,
  abstract     = {{Polarized neutron imaging brings the great advantage of analyzing bulk magnetic properties with good spatial resolution. The technique is based on the interaction of the neutron spin with magnetic samples or free magnetic fields and observing the changes to a spin-polarized neutron beam. The high sensitivity to even small magnetic fields is a benefit in obtaining magnetization information but simultaneously a challenge in instrumentation, since magnetic environments for the polarized neutron beam and for the sample, as well as the fringe field from the magnetic sample itself all affect the measurement and can give rise to unwanted effects. We have used finite element simulations and ray tracing simulations, to design and analyze a magnetic sample environment devised for the measurement of ferromagnetic metal sheets. Here we show an analysis of performance of the experimental setup based on the simulation results and compare them to first experimental results on a grain oriented silicon steel sample.}},
  author       = {{Backs, Alex and Sebold, Simon and Busi, Matteo and Lee, Wai Tung and Strobl, Markus and Orlov, Dmytro}},
  issn         = {{2100-014X}},
  language     = {{eng}},
  month        = {{10}},
  publisher    = {{EDP Sciences}},
  series       = {{EPJ Web of Conferences}},
  title        = {{Development and first results of a magnetic sample environment for polarized neutron imaging of thin metal sheets}},
  url          = {{http://dx.doi.org/10.1051/epjconf/202328605003}},
  doi          = {{10.1051/epjconf/202328605003}},
  volume       = {{286}},
  year         = {{2023}},
}