Albers, HannesHannesAlbersKluth, TobiasTobiasKluthKnopp, TobiasTobiasKnopp2020-09-152020-09-152020-09-02International Journal on Magnetic Particle Imaging 6 (2, Suppl 1): 2009020, 1-3 (2020)http://hdl.handle.net/11420/7323In the context of system function modeling for magnetic particle imaging, computing fast and accurate approxima-tions to the time evolution of magnetic nanoparticles’ (MNPs) mean magnetic moment is a problem of interest. In a software toolbox we comprise algorithms and methods that can simulate Brownian and Néel relaxation of MNPs’ magnetic moments that can be used to obtain more accurate model-based system matrices than those relying on the so-called equilibrium model. We present and discuss results obtained with these implementations which are made available in the software toolbox under github.com/MagneticParticleImaging/MNPDynamics.jl to inspire further research in these directions.en2365-903320202, Suppl 113Infinite Science Publishinghttps://creativecommons.org/licenses/by/4.0/InformatikMedizinJournal Article10.15480/882.443310.18416/IJMPI.2020.200902010.15480/882.4433Other