General Electric Company

Koninklijke Philips Corporation N.v.

John Arthur Urbahn

Evangelos Trifon Laskaris

Yu Wang

Robert John Nygard

Andrew Michael Leach

William Louis Einziger

Philippe Abel Menteur

Jan Henrik Ardenkjaer-Larsen

Xianrui Huang

James Pellegrino Alexander

Christopher Anthony Kaminski

Peter Miller

Ernst Wolfgang Stautner

Longzhi Jiang

Robert Adolph Ackermann

Richard Nils Dawson

Kathleen Melanie Amm

Albert Eugene Steinbach

Bruce Campbell Amm

David Key Dietrich

Peter D Miller

Gregory Alan Lehmann

Eric Telfeyan

John Scaturro, Jr

Glen George Pfleiderer

Jalal Hunain Zia

Jaydeep Roy

David Brandon Whitt

Matthew Voss

Vincent Paul Staudinger

In-Hua Xu

Abdul Rahman Abdallah Al-Khalidy

Ezra Petrus Antonius Van Lanen

James Richard Trigger

A system () for controlling temperature of a persistent current switch () operating in a background magnetic field includes a heat exchanger (), a loop tube (), a ball valve () and multiple electromagnets (). The heat exchanger disperses heat to a cryocooler (). The loop tube enables flow of coolant to convectively transfer thermal energy generated by the persistent current switch to the heat exchanger. The ball valve is integrated with the loop tube between the persistent current switch and the heat exchanger, and contains a ferromagnetic ball (). The electromagnets are positioned outside the loop tube adjacent to the ball valve, where energizing a first electromagnet of the multiple electromagnets magnetically moves the ferromagnetic ball to a first position opening the loop tube and enabling the flow of the coolant, and energizing a second electromagnets magnetically moves the ferromagnetic ball to a second position closing the loop tube and blocking the flow of the coolant.

System for controlling temperature of persistent current switch

A superconducting magnet () includes a cryogenic container () containing a superconducting magnet winding (). A sealed electrical feedthrough () passes through the cryogenic container. A contactor () inside the cryogenic container has an actuator () and feedthrough-side and magnet-side electrical terminals (). A high temperature superconductor (HTS) lead () also disposed in the cryogenic container has a first end () electrically connected with the magnet-side electrical terminal of the contactor and a second end () electrically connected to the superconducting magnet winding. A first stage thermal station () thermally connected with the first end of the HTS lead has a temperature (T) lower than the critical temperature (TC,HTS) of the HTS lead. A second stage thermal station () thermally connected with the second end of the HTS lead has a temperature (T) lower than a critical temperature (TC) of the superconducting magnet winding ().

Lead and thermal disconnect for ramping of an MRI or other superconducting magnet

Provided is an apparatus and method comprising, an airlock chamber; a cryogenic chamber; an equilibrator positioned between the airlock chamber and the cryogenic chamber that is configured to allow for the passage of a sample along to the cryogenic chamber; and a cooling unit that is thermally coupled to the equilibrator. Collectively, the airlock chamber, equilibrator, and the cryogenic chamber define a travel path. A machine-readable medium, comprising instructions which when executed by a controller causes a sample to be cooled, is also provided.

Apparatus and method for introduction of a material into a cryogenic system

A fluid path system includes a vial containing a pharmaceutical product therein. A dissolution fluid path is also included in the fluid path system, the dissolution fluid path having an output end in fluid communication with the vial and an input end attached to a pressure vessel containing a dissolution medium. A delivery fluid path is also included in the system having a first end hermetically attached to the vial to transport therefrom a mixture of dissolved pharmaceutical product and dissolution medium and a second end connected to a receiving vessel to receive the mixture. A dissolution fluid path valve is positioned between the pressure vessel and the dissolution fluid path to control flow of the dissolution medium, and a delivery fluid path valve is also included in the fluid path system to control flow of the mixture from the delivery fluid path to the receiving vessel.

Fluid path system for dissolution and transport of a hyperpolarized material

Systems and methods for self-sealing a coldhead sleeve of a magnetic resonance imaging system are provided. One coldhead sleeve arrangement includes a coldhead sleeve configured to receive therein a coldhead of an MRI system and having an open end. The coldhead sleeve arrangement also includes a sealing member coupled at the open end of the coldhead sleeve and configured in a normally closed position covering the open end.

System and method for self-sealing a coldhead sleeve of a magnetic resonance imaging system

A system is disclosed for cooling superconducting devices. The system includes a cryogen cooling system configured to be coupled to the superconducting device and to supply cryogen to the device. The system also includes a cryogen storage system configured to supply cryogen to the device. The system further includes flow control valving configured to selectively isolate the cryogen cooling system from the device, thereby directing a flow of cryogen to the device from the cryogen storage system.

Cooling of superconducting devices by liquid storage and refrigeration unit

Provided is an apparatus and method for automated hyperpolarization of samples for use as an imaging agent comprising a sample box, an airlock chamber configured to receive a sample from the sample box, a cryogenic chamber, a guide channel to transport samples from the airlock chamber to the cryogenic chamber, a heater and pressure module coupled to the sample box, an insertion and retraction device to transport samples through the guide channel to and from the cryogenic chamber, a dissolution module coupled to the sample box, and a controller to regulate hyperpolarization of the samples by controlling one or more of position, sequencing, temperature, pressure, and dissolution of the samples within the apparatus. Also provided is a machine-readable medium comprising instruction which, when executed by a controller, causes a hyperpolarization apparatus to perform the steps of hyperpolarization of a sample.

Apparatus and method for a fully automated preparation of a hyperpolarizing imaging agent

A power generation system including: a generator including a rotor including a superconductive rotor coil coupled to a rotatable shaft; a first prime mover drivingly coupled to the rotatable shaft; and a thermal radiation shield, partially surrounding the rotor coil, including at least a first sheet and a second sheet spaced apart from the first sheet by centripetal force produced by the rotatable shaft. A thermal radiation shield for a generator including a rotor including a super-conductive rotor coil including: a first sheet having at least one surface formed from a low emissivity material; and at least one additional sheet having at least one surface formed from a low emissivity material spaced apart from the first sheet by centripetal force produced by the rotatable shaft, wherein each successive sheet is an incrementally greater circumferential arc length and wherein the centripetal force shapes the sheets into a substantially catenary shape.

Multilayer radiation shield

A method for calculating a mass flow rate of a cryogenic fluid within a flow tube includes positioning a sensor within a stream of cryogenic fluid flowing through the flow tube. The sensor is operatively coupled to a strain gauge. A difference between a dynamic pressure in the fluid stream and a static pressure in the fluid stream is measured and the mass flow rate of the cryogenic fluid within the flow tube is calculated.

Method and apparatus for measuring cryogenic flow

A winding assembly for a rotor is disclosed comprising a plurality of rotor field windings and a field support holding said plurality of windings in said winding assembly, wherein the winding assembly is mountable on said rotor.

Apparatus and method for a field winding assembly mountable on a rotor in a synchronous machine

A rotor is disclosed for a synchronous machine comprising: a rotor core; a super-conducting coil winding extending around at least a portion of the rotor core, the coil winding having a pair of side sections on opposite sides of the rotor core; and a conductive shield around the rotor core and covering the coil winding.

High temperature super-conducting synchronous rotor having an electromagnetic shield and method for assembly

A non-uniform multi-layer thermally insulating blanket assembly for use in a superconducting magnet in the tapered space between the thermal radiation shield and a conical support assembly includes three steps at different thicknesses provided by multiple blankets with layer staking and blanket positioning.

Superconducting magnet non-uniform thermal insulation blankets

A superconductive magnet includes a cryogenic vessel enclosing superconductive coils, a thermal shield enclosing the cryogenic vessel, a vacuum enclosure enclosing the thermal shield, a tube suspension assembly having a plurality of tubes located between respective ones of the cryogenic vessel, thermal shield and vacuum enclosure and axially overlapped and interconnected with the cryogenic vessel, thermal shield and vacuum enclosure and the tubes forming bonded joints with one another, and a plurality of locking clip arrangements attached to and having portions at least partially overlapping the bonded joints of the tubes of the suspension assembly so as to reinforce and strengthen the bonded joints.

Growing community of inventors

Saratoga Springs, NY, United States of America

John Arthur Urbahn