MNPDynamics: A computational toolbox for simulating magnetic moment behavior of ensembles of nanoparticles

In the context of system function modeling for magnetic particle imaging, computing fast and accurate approximations 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 rotation 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   Int. J. Mag. Part. Imag. 6(2), Suppl. 1, 2020, Article ID: 2009020, DOI: 10.18416/IJMPI.2020.200902