Magnet assembly of an MRI system with concentric annular ferromagnetic laminations
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United States of America Patent
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Jul 4, 2006
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N/A
app pub date -
Oct 12, 2000
filing date -
Oct 29, 1999
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Abstract
The present invention is a saturated ferromagnetic structure for controlling the homogeneity of the primary magnet field of a magnet in a Magnetic Resonance Imaging system. The structure has a plurality of coaxial laminations disposed thereon about a central axis of the structure, such that the structure is magnetically saturated and generates a magnetic field parallel to the central axis. In use the structure functions to improve the homogeneity of the primary magnetic field. The structure further allows for a MRI system with a less confined patient space than is currently available with known MRI systems.
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