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Description
This paper presents the design and simulation of miniaturized permanent magnet configurations for Nuclear Magnetic Resonance (NMR) applications capable of in-vivo measurements. Traditional NMR systems require large, expensive equipment with high field uniformity, making portable applications challenging. We compare various compact magnet geometries, including H-type and Halbach arrays, evaluating their field strength, homogeneity, and suitability for finger-scanning applications. Our work demonstrates that carefully designed permanent magnet arrays can achieve sufficient field uniformity for localized metabolite detection in a compact form factor. Through computational modelling, we establish a framework for quantifying and optimizing magnetic field homogeneity critical for accurate NMR measurements in portable diagnostic devices.
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