The present invention addresses a problem of providing an MgB2 wire material having a small reversible bending radius, a superconducting coil using the same, and an MRI without lowering a critical current value and a critical current density of the MgB2 wire material to an extreme. To solve the problem, provided are a superconducting wire having a plurality of MgB2 strands and a first base metal, a superconducting coil using the same, and an MRI, the superconducting wire being characterized in that in a cross section orthogonal to a wire longitudinal direction, a center point of an area surrounded by the plurality of MgB2 strands and a center axis of a cross section of the superconducting wire are disposed in separated positions.

The present disclosure relates to a shimming device. The shimming device may include at least one supporting component each of which is configured with a plurality of wire groove groups. Each of the plurality of wire groove groups may include a plurality of wire grooves. Each of the plurality of wire grooves may be in a closed shape. The closed shapes formed by the plurality of wire grooves may be nested. The shimming device may further include wires arranged in the wire grooves of the plurality of wire groove groups of the at least one supporting component.

The present disclosure relates to using an integrated cooling circuit to provide both forced-flow pre-cooling functionality and closed-loop thermosiphon cooling for persistent mode operation of a superconducting magnet. In one embodiment, the integrated cooling circuit shares a single set of cooling tubes for use with both the forced-flow pre-cooling circuit as well as the closed-loop operating-state cooling circuit.

The nuclear magnetic resonance (NMR) system can have an interrogating subsystem comprising a superconducting path with an alternating plurality series of parallel back and forth segments collectively forming an interrogating surface adjacent the sample area, the interrogating subsystem configured for i) emitting an oscillating magnetic field B1 configured to disrupt a configuration of nuclear spins in the sample in a manner for the disrupted nuclear spins to generate a signal, and ii) receiving the signal.

According to one embodiment, a magnetic resonance imaging system includes a first imaging apparatus, a first cooling system, a second imaging apparatus, a second cooling system and a cooling control device. The first imaging apparatus includes a first magnet configured to generate a static magnetic field. The first cooling system is configured to cool the first magnet. The second imaging apparatus includes a second magnet configured to generate a static magnetic field. The second cooling system is configured to cool the second magnet. The cooling control device is configured to switch a cooling target of each of the first cooling system and the second cooling system.

A magnetic resonance imaging device may include a field generator configured to provide a magnetic field in an imaging volume of the magnetic resonance imaging device. The field generator may include at least one magnet that confines the imaging volume in at least one spatial direction. The at least one magnet may be curved in such a way that a perpendicular distance between a line oriented along a direction of access to the imaging volume and a surface directed towards the imaging volume of the at least one magnet varies in the direction of access to the imaging volume.

A magnetic field generator includes a refrigerating machine, a cold head, a superconductor which is formed in a cylindrical shape, a cold head extension portion which extends from the cold head and is brought into thermal contact with the superconductor at its extended end; and a vacuum heat insulating container having an internal space in which the cold head, the cold head extension portion, and the superconductor are received. The superconductor has a room temperature bore space, which is formed on its inner peripheral side along an axial direction of the superconductor, and is spatially isolated from the internal space of the vacuum heat insulating container. The room temperature bore space has both ends communicating to an outside of the magnetic field generator.

The present disclosure relates to a shimming device. The shimming device may include at least one supporting component each of which is configured with a plurality of wire groove groups. Each of the plurality of wire groove groups may include a plurality of wire grooves. Each of the plurality of wire grooves may be in a closed shape. The closed shapes formed by the plurality of wire grooves may be nested. The shimming device may further include wires arranged in the wire grooves of the plurality of wire groove groups of the at least one supporting component.

A superconducting coil of an embodiment includes a winding frame; a superconducting wire wound around the winding frame, the superconducting wire including a first region and a second region facing the first region; and a first layer placed between the first region and the second region, the first layer including a first particle and a thermosetting resin, the first particle including crystal having volume resistivity equal to or higher than 10.sup.−2 Ω.Math.m and having cleavage, and the thermosetting resin surrounding the first particle.

A superconducting magnet may include magnet coils including at least one group of outer coils and at least one group of inner coils, a container including an accommodating space, at least one first chamber that is disposed within the accommodating space and houses the at least one group of the inner coils, and at least one second chamber that is disposed within the accommodating space and houses the at least one group of the outer coils. The at least one first chamber and the at least one second chamber may be configured to be filled with a cooling medium and are in fluid communication with each other. The cooling medium may be configured to cool the magnet coils to a superconducting state.