Temperature-dependent spectrum measurement using a magnetic particle spectrometer

Magnetic particle imaging (MPI) is a novel imaging modality to map the spatial distribution of superparamagnetic iron oxide nanoparticles (SPIONs) with high sensitivity and without ionizing radiation. A magnetic particle spectrometer (MPS) is used to measure the response of SPIONs and acquire the system matrix of the imaging devices. A three-dimensional MPS has been presented lately including a temperature control unit in the sample chamber, which is able to acquire the samples’ spectra at different temperatures. In this paper, the spectra of the SPIONs sample measured at different temperatures are presented and compared.