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

Backs, AlexLund University,Lunds universitet,Institutionen för maskinvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,European Spallation Source ESS AB,Stiftelser och övriga anknutna verksamheter,Department of Mechanical Engineering Sciences,Departments at LTH,Faculty of Engineering, LTH,Other Institutions and Utilities (författare)

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.

Sebold, SimonTechnical University of Munich (författare)
Busi, MatteoPaul Scherrer Institute (författare)
Lee, Wai TungEuropean Spallation Source ESS AB (författare)
Strobl, MarkusPaul Scherrer Institute,University of Copenhagen(Swepub:lu)esss-mst (författare)
Orlov, DmytroLund University,Lunds universitet,LTH profilområde: Cirkulär byggindustri,LTH profilområden,Lunds Tekniska Högskola,LTH profilområde: Teknik för hälsa,Mekanik, Material och Komponentdesign,Institutionen för maskinvetenskaper,Institutioner vid LTH,LTH Profile Area: Circular Building Sector,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Engineering Health,Faculty of Engineering, LTH,Mechanics, Materials and Component Design,Department of Mechanical Engineering Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)mate-dol (författare)
Institutionen för maskinvetenskaperInstitutioner vid LTH (creator_code:org_t)

Av författaren/redakt...: Backs, Alex; Sebold, Simon; Busi, Matteo; Lee, Wai Tung; Strobl, Markus; Orlov, Dmytro

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