506-01-006 ISMRM Abstract

On the role of manufacturing on the performance of very low-field permanent magnet arrays

Primary: Physics & Engineering - Low-Field MRI

Secondary: Physics & Engineering - Magnets (B0)

506-01-006 · Low Field MRI Hardware · Wednesday, 13 May, 8:20 AM–10:10 AM · Auditorium 2

Keywords: Low-Field MRI Permanent Magnets Array Magnetostatic Simulation

Accepted

Umberto Zanovello ¹, Alessandro Arduino¹, Vittorio Basso¹, Luca Zilberti¹, Alessandro Sola¹, Andrea Agosto¹, Luca Toso¹, Lukas Winter^2,3, Oriano Bottauscio¹

¹Istituto Nazionale di Ricerca Metrologica, Turin, Italy

²Physikalisch Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany

³Open Source Imaging Initiative (OSI²) e.V., Berlin, Germany

Presenting Author: Umberto Zanovello

Synopsis

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References

1. T. O'Reilly, W.M. Teeuwisse, A.G. Webb, Three-dimensional MRI in a homogenous 27 cm diameter bore Halbach array magnet. J Magn Reson. 2019;307:106578.

2. P. Blümler, H. Soltner, Practical Concepts for Design, Construction and Application of Halbach Magnets in Magnetic Resonance. Applied Magnetic Resonance. 2023;54:1701–1739.

3. C.W. Windt, H. Soltner, D. van Dusschoten, P. Blümler, A portable Halbach magnet that can be opened and closed without force: The NMR-CUFF. J Magn Reson. 2011;208:27–33.

4. M.C.D. Tayler, D. Sakellariou, Low-cost, pseudo-Halbach dipole magnets for NMR. J Magn Reson. 2017;277:143–148.

5. I. Kulikov. Shimmer. https://gitlab.com/osii/shimming/shimmer. Accessed October 28, 2025

6. K. Wenzel, H. Alhamwey, T. O'Reilly, et al. B0-Shimming Methodology for Affordable and Compact Low-Field Magnetic Resonance Imaging Magnets. Frontiers of Physics. 2021.

7. Open Source Imaging Initiative (OSI²). OSII 30cm Halbach magnet. https://gitlab.com/osii/magnet/30cm-halbach-magnet/-/tree/releases/2.1?ref_type=heads. Accessed October 21, 2025.

8. SENIS AG. 3MH6-E High-Precision Teslameter with 3-axis Interchangeable Hall Probes. https://www.senis.swiss/magnetometers/teslameter-digital/3mh6-e-high-precision-teslameter-with-interchangeable-hall-probes/. Accessed October 21, 2025.

9. International Electrotechnical Commission (IEC). Methods of measurement of the magnetic dipole moment of a ferromagnetic material specimen by the withdrawal or rotation method, 2002. Geneva, Switzerland: EC 2002.

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/506-01-006