2000•IEEE Transactions on MagneticsRequires access

Design procedure for permanent magnet assemblies with uniform magnetic fields for MRI devices

A. Podol'skii

Abstract

This paper shows that for magnetic resonance imaging (MRI) permanent magnet assemblies with the pronounced pole pieces, the investigation of magnetic field generated by one pole piece is a way to obtain an interrelation between pole piece diameter, magnet assembly air-gap length, and first and second shim dimensions. The investigation makes it possible to design optimum magnet assemblies.

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Key concepts: Magnet, Shim (computing), Pole piece, Electropermanent magnet, Nuclear magnetic resonance, Magnetic field, Materials science, Air gap (plumbing)