Journal article · Preprint article
Three Dimensional Polarimetric Neutron Tomography of Magnetic Fields
Department of Physics, Technical University of Denmark1
Visual Computing, Department of Applied Mathematics and Computer Science, Technical University of Denmark2
Neutrons and X-rays for Materials Physics, Department of Physics, Technical University of Denmark3
University of Copenhagen4
Japan Atomic Energy Agency5
University of California at Berkeley6
Department of Energy Conversion and Storage, Technical University of Denmark7
Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark8
University of Manchester9
Department of Applied Mathematics and Computer Science, Technical University of Denmark10
...and 0 moreThrough the use of Time-of-Flight Three Dimensional Polarimetric Neutron Tomography (ToF 3DPNT) we have for the first time successfully demonstrated a technique capable of measuring and reconstructing three dimensional magnetic field strengths and directions unobtrusively and non-destructively with the potential to probe the interior of bulk samples which is not amenable otherwise.
Using a pioneering polarimetric set-up for ToF neutron instrumentation in combination with a newly developed tailored reconstruction algorithm, the magnetic field generated by a current carrying solenoid has been measured and reconstructed, thereby providing the proof-of-principle of a technique able to reveal hitherto unobtainable information on the magnetic fields in the bulk of materials and devices, due to a high degree of penetration into many materials, including metals, and the sensitivity of neutron polarisation to magnetic fields.
The technique puts the potential of the ToF time structure of pulsed neutron sources to full use in order to optimise the recorded information quality and reduce measurement time.
Language: | English |
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Publisher: | Nature Publishing Group UK |
Year: | 2018 |
Pages: | 1-6 |
ISSN: | 20452322 |
Types: | Journal article and Preprint article |
DOI: | 10.1038/s41598-018-20461-7 |
ORCIDs: | Sales, Morten , 0000-0001-9315-8787 , Kuhn, Luise Theil , 0000-0002-2071-1788 , Schmidt, Søren and Dahl, Anders Bjorholm |