Abstract: 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.

Abstract: A system for minimizing MGI in a superconducting magnet system of an MRI system includes a thermal shield having bi-metal material. The thermal shield is configured to be disposed about a cold mass of the superconducting magnet system, wherein the bi-metal material is configured to minimize MGI.

Abstract: A system for minimizing MGI in a superconducting magnet system of an MRI system includes a thermal shield having bi-metal material. The thermal shield is configured to be disposed about a cold mass of the superconducting magnet system, wherein the bi-metal material is configured to minimize MGI.

Abstract: A current lead assembly for minimizing heat load to a conduction cooled superconducting magnet during a ramp operation is provided. The current lead assembly includes a vacuum chamber having a through hole to enable a first end of a current lead contact to remain outside the vacuum chamber and a second end of the current lead contact to penetrate within the vacuum chamber. A vacuum boundary wall is located between the vacuum chamber and the current lead contact. At least one superconducting magnet is arranged inside of the vacuum chamber and includes a magnet lead. A second end of the current lead contact is coupled to the magnet lead via an internal lead. A vacuum cap is removably disposed to sealingly encompass therein the first end of the current lead contact during a first state of operation. The first end of the current lead contact is arranged to contact a power supply during a second state of operation, wherein the contact occurs exterior the vacuum chamber.

Abstract: A persistent current switch system is presented. One embodiment of the persistent current switch system includes a vacuum chamber having a winding unit and dual cooling paths. The dual cooling paths are configured to circulate a coolant flow. The dual cooling paths are defined by a first cooling path and a second cooling path. The first cooling path includes a solid thermal component disposed in direct contact with the winding unit and the second cooling path includes a cooling tube disposed in direct contact with the winding unit and configured to circulate a coolant therein. The dual cooling paths cool the temperature of the winding unit below the threshold temperature to transition the persistent current switch system from the first mode to the second mode. A method of for cooling a winding unit in a persistent current switch system and a switching system including dual cooling paths are also disclosed.

Abstract: A magnetic resonance imaging device is described that includes multiple magnetic coils to generate a magnetic field. Additionally, the magnetic resonance imaging device may include one or more radial gaps within some or all of the magnetic coils (e.g., primary magnetic coils, bucking coils, and so forth) in which radial spacers may be located to help preserve the homogeneity of the magnetic isocenter of the primary magnetic coils during operation.

Abstract: A wind turbine is presented. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes a superconducting generator coupled to the rotor via the shaft. The superconducting generator includes an armature configured to be rotated via the shaft. The superconducting generator further includes a stationary field disposed concentric to and radially outward from the armature.

Abstract: A wind turbine is presented. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes a superconducting generator coupled to the rotor via the shaft. The superconducting generator includes an armature configured to be rotated via the shaft. The superconducting generator further includes a stationary field disposed concentric to and radially outward from the armature.

Abstract: A current lead assembly for minimizing heat load to a conduction cooled superconducting magnet during a ramp operation is provided. The current lead assembly includes a vacuum chamber having a through hole to enable a first end of a current lead contact to remain outside the vacuum chamber and a second end of the current lead contact to penetrate within the vacuum chamber. A vacuum boundary wall is located between the vacuum chamber and the current lead contact. At least one superconducting magnet is arranged inside of the vacuum chamber and includes a magnet lead. A second end of the current lead contact is coupled to the magnet lead via an internal lead. A vacuum cap is removably disposed to sealingly encompass therein the first end of the current lead contact during a first state of operation. The first end of the current lead contact is arranged to contact a power supply during a second state of operation, wherein the contact occurs exterior the vacuum chamber.

Abstract: A magnetic resonance imaging device is described that includes multiple magnetic coils to generate a magnetic field. Additionally, the magnetic resonance imaging device may include one or more radial gaps within some or all of the magnetic coils (e.g., primary magnetic coils, bucking coils, and so forth) in which radial spacers may be located to help preserve the homogeneity of the magnetic isocenter of the primary magnetic coils during operation.

Abstract: An imaging device may include multiple magnetic coils to generate a magnetic field. Additionally, the imaging device may include an outer support affixed to at least one coil of the plurality of magnetic coils and an axial support between at least two coils of the plurality of magnetic coils, wherein the outer support and the axial support operatively share a load corresponding to the generated magnetic fields.

Abstract: 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.

Abstract: A persistent current switch system is presented. One embodiment of the persistent current switch system includes a vacuum chamber having a winding unit and dual cooling paths. The dual cooling paths are configured to circulate a coolant flow. The dual cooling paths are defined by a first cooling path and a second cooling path. The first cooling path includes a solid thermal component disposed in direct contact with the winding unit and the second cooling path includes a cooling tube disposed in direct contact with the winding unit and configured to circulate a coolant therein. The dual cooling paths cool the temperature of the winding unit below the threshold temperature to transition the persistent current switch system from the first mode to the second mode. A method of for cooling a winding unit in a persistent current switch system and a switching system including dual cooling paths are also disclosed.

Abstract: An imaging device may include multiple magnetic coils to generate a magnetic field. Additionally, the imaging device may include an outer support affixed to at least one coil of the plurality of magnetic coils and an axial support between at least two coils of the plurality of magnetic coils, wherein the outer support and the axial support operatively share a load corresponding to the generated magnetic fields.

Abstract: A system includes a storage tank storing gas. The storage tank includes a storage tank interface portion made from a first material. The system also includes a nozzle that includes a nozzle interface portion and a first portion. The first portion is made from a second material different from the first material. Additionally, the system includes a connection formed by coupling the storage tank interface portion and the nozzle interface portion to one another, and the connection is configured to maintain a leak rate of the gas equal to or less than 1×10?4 standard cubic centimeters per second (std. cc/s).

Abstract: A system includes a storage tank storing gas. The storage tank includes a storage tank interface portion made from a first material. The system also includes a nozzle that includes a nozzle interface portion and a first portion. The first portion is made from a second material different from the first material. Additionally, the system includes a connection formed by coupling the storage tank interface portion and the nozzle interface portion to one another, and the connection is configured to maintain a leak rate of the gas equal to or less than 1×10?4 standard cubic centimeters per second (std. cc/s).

Abstract: An MRI scanner can include a magnet assembly forming a central magnetic field area, and a slot for receiving a shim drawer formed within the central magnetic field area. There can be included a shim drawer received within the slot. The shim drawer can be configured to carry one or more metal shim and the shim drawer can be formed of conductive material.

Abstract: A superconducting magnet system including a coil former, superconducting coils supported by the coil former, and one or more thermally conductive tubes. The one or more thermally conductive tubes are embedded inside of the coil former. The one or more thermally conductive tubes are in thermal contact with the coil former and arranged to receive a cryogen.

Abstract: A system for producing precision magnetic coil windings is provided. The system includes a wire disposing assembly having a support, an axial traverser sub-assembly, and a support arm. The support is configured to receive a plurality of turns of a wire. The axial traverser sub-assembly is operatively coupled to the support. The support arm includes a wire disposing device. The system further includes a linear stage, a monitoring unit, a feedback unit, and a controller unit. The linear stage is operatively coupled to the support arm. Moreover, the controller unit is configured to axially position an incoming portion of the wire and provide reference trajectories for tracking.

Abstract: A current lead assembly for minimizing heat load to a conduction cooled superconducting magnet during a ramp operation is provided. The current lead assembly includes a vacuum chamber having a through hole to enable a retractable current lead having a retractable contact to penetrate within the vacuum chamber. A superconducting magnet is arranged inside of the vacuum chamber and includes a magnet lead. A current contact is arranged inside of the vacuum chamber beneath the through-hole and is coupled to the magnet lead via a thermal connector. The current contact is supported by a thermal isolation support structure coupled to an inside wall of the vacuum chamber. An actuator assembly is provided to contact the retractable contact with the current contact, where connection occurs at ambient temperature inside of the thermal isolation support structure.