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7609139 |
Split Florida-helix magnet
An electromagnet having at least one access port oriented perpendicularly to the electromagnet's central axis. The magnet has a conventional helical winding along its central axis. However, at some...
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7606019 |
Magnet coil system with active drift compensation for two independent current paths
A magnet coil system ( 2 ) which is at least partially superconducting at a cryogenic temperature, comprising at least two partial coils ( 3, 4, 5 ) which are connected in series and are each...
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7602269 |
Permanent current switch
There is disclosed a permanent current switch which has a high temperature margin and which is thermally stable and which securely performs a switching operation between a superconducting state and...
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7586396 |
Superconducting resistive current limiter with a shunt
A resistive current limiter with at least one tubular high temperature superconductor body is disclosed provided with a shunt of a normal conducting material wound in coil configuration around the...
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7570141 |
Method of designing a shim coil to reduce field settling time
A shim coil design technique determines a position and a geometry of a room temperature (RT) shim coil to provide both a desired field homogeneity and a desired B 0 field setting time. The...
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7567158 |
Superconducting magnet arrangement with hysteresis free field coil
A magnet arrangement (M, M′, M″, M′″) for generating a magnetic field in the direction of a z-axis in a working volume (V) disposed on the z-axis about z=0, with a magnet coil system (A,...
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7567157 |
Rectangular coil made of strip-shaped superconductors containing high-Tc-superconductor material and use thereof
A rectangular coil has several successive windings which are made of a strip-shaped super conductor, which contains at least one core which is embedded in a normal conductive matrix material and...
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7567156 |
Superconducting magnet configuration with switch
A superconducting magnet configuration with a magnet coil ( 1 ) of inductance L which is disposed in a cryostat ( 7 ) at a cryogenic temperature, for generating a temporally stable magnetic field,...
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7559205 |
Cryogen tank for cooling equipment
A cryogen tank in thermal and mechanical attachment with the equipment to be cooled. Direct thermal conduction between the cryogen and the equipment provides the required cooling. The tank is...
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7541905 |
High-field superconducting synchrocyclotron
The magnetic field in an acceleration chamber defined by a magnet structure is shaped by shaping the poles of a magnetic yoke and/or by providing additional magnetic coils to produce a magnetic...
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7541904 |
Magnetic field adjusting device
The present invention relates to a magnetic field adjusting device; such as may be used in MRI apparatus. The device can overcome the magnetic force to enable shimming plugs to move in a controlled...
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7538649 |
Superconducting electromagnet
A superconducting electromagnet is provided with a magnetic shield for protecting, from a leakage magnetic flux of the superconducting electromagnet, a motor for driving a cryocooler for cooling a...
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7538648 |
MRT device
The invention relates to an MRT device with a superconducting magnet whose coils are located in a helium tank and with electronic control components whereby a section of control components is...
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7522027 |
Magnet assembly and a method for constructing a magnet assembly
A magnet assembly comprising a former having an outer surface ( 20 ) with a cavity ( 12 ) formed therein, and a coil ( 14 ) wound into the cavity ( 12 ), said cavity being of greater depth than the...
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7509815 |
Superconducting device having cryosystem and superconducting switch
A superconducting device has a cryosystem to whose cryogenic medium a superconducting appliance and a superconducting switching path (which is electrically connected to it and can be activated...
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7504826 |
Superconducting magnet and MRI apparatus using the same
A superconducting magnet of the present invention includes a switching element that closes its output side (operation side) when the voltage on its input side is smaller than a predetermined value...
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7498915 |
Application of superconductive permanent magnets
A fixed remanence rigid permanent magnetic structure is provided. The fixed remanence rigid permanent magnetic structure is fabricated from a number of superconductive magnetic segments composed of...
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7484691 |
Method and device for magnetic space radiation shield providing isotropic protection
There is provided a radiation shield device for providing radiation protection to an area, such as a manned vehicle. The radiation shield device comprises a magnetic field generator, such as a...
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7474515 |
Cryogenic magnet control system
A cryogenic magnet control system has a number of magnet coils each formed by superconductive material wound on a former and a supply for energizing the magnet coils to generate an operational...
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7466133 |
Systems, methods and apparatus of a magnetic resonance imaging system to produce a stray field suitable for interventional use
Systems, methods and apparatus are provided through which in some embodiments a magnetic resonance imaging (MRI) system includes one or more magnetic shield coils positioned asymmetrically in the...
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7463129 |
Magnet structure
A magnet structure includes a permanent magnet assembly and first and second pole assemblies. The permanent magnet assembly includes an enclosure having an open portion and a magnetic mass disposed...
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7453342 |
Method of controlling and stabilizing laser output
This invention describes a means by which lasers and laser beam controllers mounted on moving vehicles or other unstable platforms can be isolated from vibrations. By magnetically levitating the...
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7453340 |
Superconducting wire and superconducting coil employing it
Tape-shaped superconducting wires, and a superconducting coil formed from said wires, wherein a plurality of electrically separated superconducting film parts, each having a rectangular cross...
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7446636 |
System utilizing the earth's magnetic field to generate a force in opposition to the force of gravity
A loop of superconducting material forms a continuous current flow path. A portion of the loop is shielded from the Earth's magnetic field and another portion is unshielded. Charged particles...
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7439836 |
Magnetic field generating apparatus for magnetic resonance imaging
A Magnetic Resonance Imaging (MRI) system is disclosed. The MRI system includes a cryogenic magnet assembly with a cryogenic vessel housing a superconducting magnet. Disposed radially inboard of...
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7432790 |
Superconductor assembly
The invention relates to a superconductor assembly comprising a metallic superconductor and a ceramic superconductor, which are mechanically and electrically interconnected to form a one-piece...
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7430871 |
NMR spectrometer with a common refrigerator for cooling an NMR probe head and cryostat
An NMR spectrometer comprising a magnet coil system disposed in the helium tank ( 8 ) of a cryostat and an NMR probe head ( 4 ) which is disposed in a room temperature bore of the cryostat and...
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7400223 |
Superconducting magnet configuration with resistive elements
A magnet configuration comprising a superconducting magnet coil system (M) and a current path (P) which comprises parts of the magnet coil system (M), wherein at least two electric connecting...
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7394628 |
Method and apparatus for regulation of electrical power
An apparatus for regulation of electrical power has a superconducting member exhibiting a capability of quenching at the electrical current exceeding a threshold value, a metallic member coupled to...
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7394338 |
Superconducting coil
In one embodiment, a superconducting coil includes a tertiary parallel superconductor unit ( 60 ) composed of superposed in parallel a plurality of layers of secondary parallel superconductor units...
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7383688 |
Superconducting device having a cryogenic system and a superconducting switch
The superconducting device has a cryogenic system to whose first refrigerant there is thermally coupled a superconducting unit and a superconducting switching path, which is electrically connected...
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7383625 |
Method of manufacturing continuous disk winding for high-voltage superconducting transformers
Disclosed is a method of manufacturing a continuous disk winding. A high-temperature superconducting wire is lapped using Kapton films to insulate the high-temperature superconducting wire. The...
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7382134 |
Superconducting magnet apparatus for MRI
In a superconducting magnets for MRI configured to generate a homogeneous magnetic field and a gradient magnetic field in a space between a top superconducting magnet and a bottom superconducting...
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7359164 |
Superconducting matrix fault current limiter with current-driven trigger mechanism
A modular and scalable Matrix-type Fault Current Limiter (MFCL) that functions as a “variable impedance” device in an electric power network, using components made of superconducting and...
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7352267 |
Cylindrically shaped superconductor component and its use as resistive current limiter
The present invention is directed to a cylindrically shaped superconductor component particularly useful as resistive current limiter composed of a cylindrical superconductor body, in particular of...
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7345559 |
High field open MRI magnet isolation system and method
A vertically-aligned open MRI magnet system includes first and second (i.e., top and bottom) assemblies each having a longitudinally-extending and vertically-aligned axis, a superconductive main...
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7342757 |
System and method for quench protection of a superconductor
A system and method for protecting a superconductor from a quench condition. A quench protection system is provided to protect the superconductor from damage due to a quench condition. The quench...
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7335864 |
Magnetic field reduction resistive heating elements
Heating element assemblies, heating furnaces incorporating heating element assemblies, methods to form heating element assemblies, methods to form heating furnaces and methods to reduce a magnetic...
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7333309 |
Self field triggered superconducting fault current limiter
A superconducting fault current limiter array with a plurality of superconductor elements arranged in a meanding array having an even number of supconductors parallel to each other and arranged in...
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7330341 |
Superconducting magnet coil system with quench protection
A superconducting magnet coil system comprising a main field coil which is formed from series-connected sections, wherein the conductors of the radially inner sections contain a first...
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7330092 |
Superconductor magnet coil configuration
A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber ( 1 ) between two end...
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7323963 |
MRI superconductive magnet
An object of the present invention is to provide a MRI superconductive magnet enables sharp images representing patients' health states to be produced. [Means for Achieving the Object] A MRI...
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7317369 |
Superconductor magnet coil configuration
A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber ( 1 ) between two end...
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7310034 |
Superconductor magnet coil configuration
A superconducting magnet coil configuration has at least one section containing a superconducting strip conductor which is wound in several layers like a solenoid in a cylindrical winding chamber (...
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7301425 |
Pancake type bifilar winding module using high-tc superconducting wire and bobbin for winding therefor
The present invention discloses a pancake-type bifilar winding module using a superconducting wire and a winding bobbin therefor. The pancake-type bifilar winding module includes (a) a bobbin...
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7297055 |
Vacuum-insulating system and method for generating a high-level vacuum
A method of generating a high-level vacuum comprises evacuating a chamber having a substantially-pure gas therein to a medium-level vacuum, and freezing the residual gas to generate the high-level...
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7286032 |
Rare-earth-Ba-Cu-O superconductors and methods of making same
Rare-earth-Ba—Cu—O superconductors having improved critical current density are described, as are methods of making same. These superconductors comprise a drop in J c of less than a factor of...
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7283339 |
Superconducting FCL using a combined inducted magnetic field trigger and shunt coil
A single trigger/shunt coil is utilized for combined induced magnetic field triggering and shunt impedance. The single coil connected in parallel with the high temperature superconducting element,...
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7227438 |
Superconducting wire transposition method and superconducting transformer using the same
The present invention discloses a superconducting wire transposition method and superconducting transformer whose winding is formed of superconducting wire to enable the formation of...
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7224250 |
Superconducting magnet apparatus
This invention provides a superconducting magnet apparatus capable of preventing or restraining the heat invading into the apparatus and reducing the refrigeration load of an external refrigerator,...
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