Title :
Design procedure for permanent magnet assemblies with uniform magnetic fields for MRI devices
Author_Institution :
11 Krupskoy St., St. Petersburg, Russia
fDate :
3/1/2000 12:00:00 AM
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
Keywords :
magnetic fields; magnetic resonance imaging; permanent magnets; MRI devices; design procedure; first shim dimensions; magnet assembly air-gap length; magnetic resonance imaging; optimum magnet assemblies; permanent magnet assemblies; pole piece diameter; pole pieces; second shim dimension; uniform magnetic fields; Air gaps; Assembly; Helium; Magnetic devices; Magnetic fields; Magnetic resonance imaging; Permanent magnets; Saturation magnetization; Soft magnetic materials; Superconducting magnets;
Journal_Title :
Magnetics, IEEE Transactions on
