Koninklijke Philips Corporation N.v.

Ezra Petrus Antonius Van Lanen

Philippe Abel Menteur

John Arthur Urbahn

Matthew Jonathan Voss

A superconducting magnet comprises superconducting magnet windings wound as a solenoid to generate a magnetic field oriented in an axial direction when carrying a superconducting electric current, and a superconducting loop having a long axis crossing the superconducting magnet windings along the axial direction. The superconducting loop is thermally connected with the superconducting magnet windings at crossings of the superconducting magnet windings along the axial direction. The superconducting loop is electrically connected with the superconducting magnet windings to carry the superconducting electric current carried by the superconducting magnet windings. A quench initiated in the superconducting magnet windings is propagated simultaneously along the superconducting magnet windings via the superconducting magnet windings and also along the solenoid axis via the superconducting loop.

Fast quench protection for low copper to superconducting wire coils

An apparatus () includes: a cryostat () containing a volume of cryogenic fluid; one or more superconducting coils () within the cryostat; a sealed cooling system () within the cryostat and configured to maintain the one or more superconducting coils n a persistent state; and a second cooling system () having a first portion in contact with the sealed cooling system within the cryostat, a second portion extending outside of the cryostat.

Accelerated cooldown of low-cryogen magnetic resonance imaging (MRI) magnets

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.

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Niskayuna, NY, United States of America

Ezra Petrus Antonius Van Lanen