Patent ID: 6078234
Filing Date: 2000-06-20
Classification: B82Y,G01R,Y10S

Abstract:
An open architecture magnetic resonance imaging superconducting magnet utilizing a separated pair of superconducting magnet coil assemblies forming an axial bore about the axis thereof and accessible open imaging volume between the superconducting magnet coil assemblies comprising:a first annular magnet assembly housing positioned about said axis;a second annular magnet assembly housing positioned about said axis, and spaced from said first annular magnet assembly;each of the annular magnet assemblies including a cryogen pressure vessel and at least one superconducting magnet coil in each of said cryogen pressure vessel to provide a magnetic field within said open imaging volume;an internal and strengthening assembly for each of said cryogen pressure vessels including a cylinder within the cryogen pressure vessel dividing said cryogen pressure vessel into two adjacent cylindrical chambers with end flanges closing the ends;a plurality of braces internal to said adjacent cylindrical chambers extending around the interior of said pressure vessel between said end flanges at an angle to said axis; andsaid strengthening assembly resisting deformation of said cryogen pressure vessel by the magnetic forces generated by said at least one superconducting magnet coil.