Journal Publications
| [191168] |
| Title: Single-Shot Magnetic Field Measurements for MPI. |
| Written by: F. Foerger, N. Hackelberg, M. Boberg, M. Möddel, F. Thieben, F. Mohn, and T. Knopp |
| in: <em>13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)</em>. (2024). |
| Volume: <strong>10</strong>. Number: (1 Suppl 1), |
| on pages: 1-1 |
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| URL: https://www.journal.iwmpi.org/index.php/iwmpi/article/view/743 |
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Note: inproceedings
Abstract: Magnetic field measurements play a central role in Magnetic Particle Imaging (MPI). However, their determination is often a time-consuming process that involves sequentially scanning a given volume at predefined locations with a single magnetic field sensor. Therefore, an extensive amount of measurements is required to accurately characterize magnetic field generators, particularly those utilizing non-linear field generation processes. In this work, we introduce a single-shot magnetic field measurement system capable of capturing magnetic fields within a sphere with a 9 cm diameter at a measurement rate of 10 Hz. In comparison, a similar measurement conducted with a single 3D Hall probe moved by a robot previously took 4 min per volume measurement. We present magnetic field measurements of static MPI fields and characterize the accuracy of the single-shot measurement system. In addition, we discuss limitations on the field shapes that can be accurately measured.
Conference Proceedings
| [191168] |
| Title: Single-Shot Magnetic Field Measurements for MPI. |
| Written by: F. Foerger, N. Hackelberg, M. Boberg, M. Möddel, F. Thieben, F. Mohn, and T. Knopp |
| in: <em>13th International Workshop on Magnetic Particle Imaging (IWMPI 2024)</em>. (2024). |
| Volume: <strong>10</strong>. Number: (1 Suppl 1), |
| on pages: 1-1 |
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| URL: https://www.journal.iwmpi.org/index.php/iwmpi/article/view/743 |
| ARXIVID: |
| PMID: |
Note: inproceedings
Abstract: Magnetic field measurements play a central role in Magnetic Particle Imaging (MPI). However, their determination is often a time-consuming process that involves sequentially scanning a given volume at predefined locations with a single magnetic field sensor. Therefore, an extensive amount of measurements is required to accurately characterize magnetic field generators, particularly those utilizing non-linear field generation processes. In this work, we introduce a single-shot magnetic field measurement system capable of capturing magnetic fields within a sphere with a 9 cm diameter at a measurement rate of 10 Hz. In comparison, a similar measurement conducted with a single 3D Hall probe moved by a robot previously took 4 min per volume measurement. We present magnetic field measurements of static MPI fields and characterize the accuracy of the single-shot measurement system. In addition, we discuss limitations on the field shapes that can be accurately measured.
