Scheffler, KonradKonradSchefflerMeyn, LaraLaraMeynFoerger, FynnFynnFoergerBoberg, MarijaMarijaBobergMöddel, MartinMartinMöddelKnopp, TobiasTobiasKnopp2024-04-242024-04-242024-03-10International Journal on Magnetic Particle Imaging 10 (1, suppl. 1): 2403006 (2024)https://hdl.handle.net/11420/47249Exact knowledge on the magnetic fields used in tomographic imaging systems is important for accurate sequence planning and model-based image reconstruction in existing devices. It is common to measure the magnetic fields on a small subset of points and use spherical harmonics to approximate the fields inside a spherical region. However, most scanner bores could be better filled using a cylindrical or ellipsoidal region. In this work, we present the application of ellipsoidal harmonics for efficient approximation of a typical magnetic field in magnetic particle imaging.en2365-903320241, suppl. 1Infinite Science Publishinghttps://creativecommons.org/licenses/by/4.0/Medicine, HealthEngineering and Applied OperationsJournal Article10.15480/882.952110.18416/IJMPI.2024.240300610.15480/882.9521Journal Article