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Poster

A Low-Cost Magnetic Measurement System for Low-Field MRI Magnets based on a Motion Tracked Flexible-Joint Robot with 5 Degrees of Freedom

MPS-Authors
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Povolni,  P       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons287208

Maltsev,  S
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Buckenmaier,  K       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84187

Scheffler,  K       
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

External Resource

https://www.tuebingen.mpg.de/224560/DACH-ISMRM2024_Proceedings.pdf
(Abstract)

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Citation

Povolni, P., Bendfeld, R., Maltsev, S., Buckenmaier, K., & Scheffler, K. (2024). A Low-Cost Magnetic Measurement System for Low-Field MRI Magnets based on a Motion Tracked Flexible-Joint Robot with 5 Degrees of Freedom. Poster presented at DACH-ISMRM Annual Meeting 2024, Tübingen, Germany.


Cite as: https://hdl.handle.net/21.11116/0000-000F-C055-8
Abstract
The number of low-field MRI scanners is on the rise, mostly due to the low costs and open-source design. Typically, the magnets are based on permanent magnets in Halbach configuration, which show strong manufacturing tolerances. Passive shimming is therefore required. Here, we present a compact and cheap measurement system based on a simple robot arm with 5 degrees of freedom and a self-developed Hall sensor. The functionality of the system is demonstrated by mapping a Halbach magnet with a magnetic field strength of 45mT (length magnet 300mm, diameter of the inner bore 160mm).