DC Bias for Improved Baseline Acquisition on a Magnetic Particle Spectrometer Setup

Magnetic particle spectrometer (MPS) setups typically feature a manually adjusted receive coil to minimize direct feedthrough interference. These adjustments can be compromised when a sample is physically inserted into the MPS setup or when a lengthy experiment is performed. In this work, we propose an MPS setup with a DC bias coil that can completely saturate the magnetic nanoparticle (MNP) signal, enabling baseline signal acquisition when the MNPs are inside the receive chamber.