TomographyMagnetic

TomographyMagnetic is a proposed imaging modality that integrates tomographic reconstruction with measurements of magnetic properties to produce three-dimensional maps of magnetization, magnetic susceptibility, or internal magnetic fields within a specimen. It is conceived as an extension of conventional tomography that leverages magnetic contrast to reveal subsurface magnetic structures.

Principles rely on acquiring magnetic signals from many angles around the object, using sensors such as MRI coils, SQUIDs, NV-center based detectors, or magneto-optical sensors. The acquired data are then inverted through tomographic algorithms, often incorporating regularization to handle the inherently ill-posed inverse problem. Depending on the implementation, TomographyMagnetic may target mapping static magnetic properties like susceptibility, tracking dynamic magnetic processes by time-resolved acquisitions, or imaging magnetized domains in materials.

Variants of the approach may combine elements from MRI, magnetoencephalography, and X-ray computed tomography, but with a focus on magnetic contrast rather than attenuation. Reconstruction typically requires prior information about the sample’s geometry or magnetic behavior and may utilize iterative methods, compressed sensing, and multi-physics models to separate magnetic signal from background noise.

Potential applications include non-destructive evaluation of magnetic components, characterization of magnetic materials and thin films, paleomagnetism research, and targeted delivery studies using magnetic nanoparticles in biomedical contexts. The field remains largely experimental and exploratory, with ongoing work addressing resolution limits, sensitivity, and safety considerations in biomedical settings.

Further reading in imaging physics literature may discuss related concepts such as magnetic susceptibility mapping, inverse problems in imaging, and hybrid modalities that blend tomography with magnetic measurements.