Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1996-08-26
1998-02-24
Nguyen, Matthew V.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
335299, 324319, H01F 100, G01N 2772
Patent
active
057215235
ABSTRACT:
A closed magnetic resonance imaging (MRI) magnet has a single superconductive coil assembly including a coil housing containing a cryogenic fluid dewar containing a pair of longitudinally-outermost impregnated superconductive main coils and at-least-one cryostable additional superconductive coil such as a pair of additional main coils, a pair of bucking coils, and/or a pair of shielding coils. An open MRI magnet has two spaced-apart superconductive coil assemblies and an imaging volume having a center. Each coil assembly has a cryostable superconductive main coil and an impregnated bucking coil with the impregnated bucking coil being the closest superconductive coil to the center of the imaging volume.
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Concurrently filed U.S. Patent Application RD-25148, by Dorri et al., entitled "Closed MRI Magnet Having Compact Design", Serial No. 08/697,516.
Dorri Bizhan
Laskaris Evangelos Trifon
Ogle Michele Dollar
Erickson Douglas E.
General Electric Company
Nguyen Matthew V.
Snyder Marvin
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