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. 2017 Oct 18;7:13452. doi: 10.1038/s41598-017-13824-z

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Magnetic flux density mapping results of a Halbach ring magnet compared with simulation results. (a) Measurement results of a 60 × 60 mm² slice with the centre of the ring being the isocenter, the spatial mapping resolution was 2 mm. (b) Simulation results with the same setup. (c) Comparison of the line plots through the isocenter between the measurement and simulation on the y-axis. A maximum deviation of 1.9% was observed. (d) Comparison between of the line plots through the isocenter the measurement and simulation on the x-axis. A maximum deviation of 1% was observed.