| 摘要 |
PURPOSE: To provide a freely approachable magnet which can be easily adjusted by a manufacturer for improving an uniform and homogeneous magnetic flux field in a freely approachable magnet for magnetic resonance image formation(MRI) in which a strong and uniform magnetic flux field can be formed and shaped by a superconductive magnet in a structural body equipped with a surplus space sufficient for a patient and a related medical work. CONSTITUTION: This device includes upper and lower end plates 22 and 24 attached to at least more than two poles 28a-28d, and a ferromagnetic frame 16 for deciding a patient accepting area, superconductive coil assemblies 18 and 20 connected with each end plate and magnetic flux field shaping devices 12 and 14 for forming and shaping a magnetic flux field in the patient accepting area, and intermediate plates 92 and 94 provided between the pole and the end plate for minimizing magnetic flux leakage are provided as the main constituting elements between the end plates. |
