АВТОМАТИЧЕСКОЕ ПЕРЕКЛЮЧЕНИЕ ТОКОВ ТОКОПРОВОДОВ ДЛЯ СВЕРХПРОВОДЯЩИХ МАГНИТОВ

... 1. Система (600) магнитно-резонансной томографии, содержащая магнит (100) для генерирования магнитного поля, при этом магнит является сверхпроводящим магнитом, при этом магнит имеет первый токопровод (108) и второй токопровод (110), при этом система магнитно-резонансной томографии дополнительно содержит систему (624) линейного изменения тока, выполненную с возможностью присоединения к первому токопроводу и второму токопроводу, при этом система линейного изменения тока выполнена с возможностью линейного изменения тока сверхпроводящего магнита, при этом магнит дополнительно содержит:вакуумный сосуд (104), при этом первый токопровод и второй токопровод расположены на внешней поверхности магнита и проникают в вакуумный сосуд;магнитный контур (106) для генерирования магнитного поля, при этом магнитный контур находится внутри вакуумного сосуда;первое соединение (132) магнитного контура;второе соединение (134) магнитного контура, при этом первое соединение магнитного контура и второе соединение ...

Elektrische Stromleiterstruktur für eine bei sehr niedrigen Temperaturen arbeitende Einrichtung.

VERBINDUNG EINES KRYOGENEN KUEHLERS MIT EINEM ZU KUEHLENDEN KOERPER.

Vorrichtung zur Kühlung mindestens eines elektrischen Betriebselements in mindestens einem Kryostaten

Vorrichtung zur Kühlung eines elektrischen Betriebselementes, das sich in einem Kryostaten befindet, der mit einem Kältemittel gefüllt ist, und das mit Stromleitungen verbunden ist, die vom Abgas des Kältemittels zu kühlen sind, wobei sich das Kältemittel und das Abgas in einem geschlossenen System befinden und zur Rückkühlung des Abgases eine Kältemaschine vorhanden ist, dadurch gekennzeichnet, dass der Umlauf (20) des Kältemittels (5, LN 2 , GN 2 ) im geschlossenen System (S) allein aufgrund einer Thermosyphonwirkung erfolgt, dass zu einer wärmekontaktierenden Rückkühlung des Abgases (GN 2 ) ein dem geschlossenen System (S) und der Kältemaschine (40) gemeinsamer Wärmetauscher (30) vorgesehen ist, der eine Wärmekontakt-Verbindung (31) zwischen dem geschlossen System (S) und der Kältermaschine (40) aufweist, und dass die Kältemaschine (40) vom geschlossenen System (S) an der Wärmekontakt-Verbindung (31) abtrennbar ist. A device for cooling an electrical operating element, which is located in a cryostat, which is filled with a refrigerant, and which is connected to power lines to be cooled by the exhaust gas of the refrigerant, wherein the refrigerant and the exhaust gas are in a closed system and for recooling the exhaust gas, there is a chiller, characterized the circulation (20) of the refrigerant (5, LN 2 , GN 2 ) in the closed system (S) takes place solely on the basis of a thermosyphon effect, in that a heat exchanger (30) is provided for a heat-contacting recooling of the exhaust gas (GN 2 ) with a closed system (S) and the chiller (40) having a thermal contact connection (31) between the closed system (S) and the refrigerating machine (40), and in that the refrigerating machine (40) can be separated from the closed system (S) at the thermal contact connection (31).

VERBINDER FUER SUPRALEITENDE DRAEHTE.

Method for joining superconducting wires, and superconducting joint

COOLANT APPARATUS FOR ELECTRICAL DEVICES EMPLOYING LOW-TEMPERATURE ELECTRICAL CONDUCTORS

... 1388508 Refrigerating SIEMENS AG 20 Dec 1972 [20 Dec 1971] 58927/72 Headings F4H and F4U [Also in Division H2] A connecting member 4 of a low-temperature electrical conductor 2, e.g. a superconductor, is cooled by immersion in a bath 6 of liquefied gas, e.g. helium, hydrogen or neon and the evaporated coolant is passed by a duct 16 to flowsplitting means 18 formed by passageways bounded by electrically insulating material which passageways are spaced apart by not more than 30 mm. As described the coolant passes through a closed circuit from the bath and splitting means to a refrigerating means 22 for liquefaction and a container 6 for supply to the bath through a pump 32. The passageways may be defined by a lattice-form mesh, by the fibres of a body made of electrically insulating fibrous material, pores of a gas-permeable material, grains of a powder, or a molecular sieve and the ends of the passageways may be covered by filters consisting of glass frits.

CRYOSTAT

... 1,273,868. Cryostat. COMPAGNIE GENERALE D'ELECTRICITE. 24 Sept., 1970 [30 Sept., 1969], No. 45664/70. Heading F4H. A cryostat 1 contains a load circuit 3 which is fed by an external current source 2, the load circuit 3 comprising a superconductive winding 4, which may be an electromagnet, across which is connected a superconductive switch 5. Current is supplied to each side of the load circuit 3 by two superconductive lower parts 16 and 17 which are in thermal contact with two tubular members 10 and 11. Before supplying current to the load circuit 3, cryogenic liquid is forced up the tubular members 10 and 11, bringing the parts 16 and 17 into a superconductive state.

Improvements in or relating to bushings

... 1,140,441. Insulating bushings. ENGLISH ELECTRIC CO., Ltd. 18 May, 1967 [21 April, 1966], No. 17512/66. Heading H2C. A bushing for use when making electrical connection with low temperature apparatus 10 includes a tube 16 which passes cryogenic vapour to an insulating duct 20 connected to the outer end of the tube. The tube itself may be conducting, or fine wires or a twisted strip, as in Specification 1,027,933, within the tube may be used as well or instead to make the connection. The duct may run between annuli 18 and 19 of insulation which may be of epoxyresin-bonded paper and porcelain respectively. The tube may be a loose fit in annular insulator 18, the inner surface of which may be conductively coated and connected to the tube. Liquid helium in bath 11 and liquid nitrogen in bath 13 may be used as cryogens.

INSULATING CURRENT LEAD-THROUGHS IN SUPERCONDUCTING APPARATUS

Cryogen pressure vessel assembly for superconducting magnets

A cryogen pressure vessel assembly (100) for a superconducting magnet comprises an inner former (102), an outer former (104), and an outer shell (106). The inner former has a plurality of superconducting magnet coils (44) wound thereon, and the outer former has a plurality of bucking coils (58) wound thereon. The inner former, the outer former, and the outer shell form a fluid boundary for a cryogen. In one aspect, a pressure face (158, Fig 4) is formed on at least one of the coil formers, and a radial slot (156) for receiving wires entering and exiting a coil is disposed in the pressure face. A plurality of wire clamps (206, Fig 4) are positioned in the radial slot, with each wire clamp in the plurality of wire clamps including: a front face (214, Fig 5) extending coplanar with the pressure face, a rear face (216, Fig 5) opposite the front face, the rear face contacting a back surface of the radial slot, and a recess (220, Fig 5) formed in the rear face, the recess forming a channel for ...

Superconducting magnet device

A cold insulation vessel comprises an inner chamber in which cryogen is enclosed, an outer chamber to enclose this inner chamber and a shield member against heat radiation which is provided between the inner chamber and the outer chamber. This vessel is provided to hold a superconducting coil which is enclosed in the inner chamber at a very low temperature. A power lead is provided to supply an exciting current to this superconducting coil. A recondenser is provided to recondense the evaporated gas of the cryogen in the inner chamber. The small refrigerator means has a plurality of refrigeration stages which are directly coupled to the power lead and the recondenser.

Superconducting magnet for producing part of a substantially toroidal field

Supercoducting magnet

A spacer device

... 1,062,975. Linkwork. COMPAGNIE GENERALE D'ELECTRICITE. June 18, 1964 [June 21, 1963], No. 25338/64. Heading F2K. A low temperature vessel 10, cooled by a liquefied gas or heat exchanger, is spaced from an outer vessel 11 by a vacuum and supported by an adjustable rod 18 and a low thermal conductivity synthetic fibre cable loop 25. The cable 25 engages slots 13, 14 in a stainless steel or plastics tube 12 stuck on the inner vessel 10, and is held by a plate 29 in grooves 27, 28 in a cap 25 pivoted on the conical end of rod 18. Rod 18 may have a polyester end and a metallic lower portion screwed in a stub 19 of the outer vessel 11 and welded thereto after initial adjustment of rod 18. In a modification, Fig. 3 (not shown), a tube (53) (which may be conical), a cable (53) and a cap (58) are interposed between the adjustable rod (50) and a tube (51) on the inner vessel (52).. The vessel 10 is used for obtaining low temperatures to facilitate the production of intense magnetic fields.

SUPERCONDUCTING MAGNETIC APPARATUS

Superconducting joints

A superconducting joint arrangement includes an elongate joint 1 made between superconducting filaments (21, Fig 3) of superconducting wires 2 of one or more superconducting coils 3. The joint is in thermal contact with at least one of the wires between the coils and the joint. This means that excess wire 30 can be provided between the elongate joint and the coils without hindering cooling of the joint.

Connection of coils to support structures in superconducting magnets

ELECTRICAL CONDUCTOR STRUCTURE FOR A WITH VERY LOW TEMPERATURES WORKING MECHANISM.

SUPERCONDUCTIVITY MECHANISM WITH A COOLING UNIT FOR A ROTATING, SUPERCONDUCTING COIL

Superconducting wire

Current inlet device, particularly for a plant working at low temperature

Coil for producing a magnetic field

METHOD AND APPARATUS FOR PROVIDING EXTREMELY LOW- RESISTANCE CONNECTION BETWEEN THE END SECTIONS OF TWO SUPERCONDUCTORS

ABSTRACT OF THE DISCLOSURE An apparatus and method for connecting the end sections of two superconductors which are to be cooled down to cryogenic operating temperatures wherein each of the superconductors contains at least one superconducting conductor filament embedded in a matrix of normal-conducting stabilizing material is disclosed. The ends of the superconducting conductor filaments are stripped at least partially of the stabilizing material, are directly placed together and welded to each other, and an electrically highly-conducting bridge of normal-conducting material is formed between the stabilizing material of the superconductors. In order to assure an extremely low-resistance connection between the ends of the superconducting conductor filaments, it is provided that these ends be joined together by ultrasonic metal welding. In particular, the ends can be arranged in a special welding form and at least partially welded to the welding form.

METHOD AND APPARATUS FOR PROVIDING EXTREMELY LOW- RESISTANCE CONNECTION BETWEEN THE END SECTIONS OF TWO SUPERCONDUCTORS

CURRENT FEEDING ARRANGEMENT FOR ELECTRICAL APPARATUS HAVING LOW TEMPERATURE COOLED CONDUCTORS

HIGH TEMPERATURE SUPERCONDUCTING ROTOR POWER LEADS

The resistive power leads of a high temperature superconducting (HTS) rotor field coil are located in vacuum near the rotor axis and are cooled by thermal conduction to the return flow path (20) by bonding the leads to the tubing bulkhead (18) through ceramic insulators (22). The lead length, cross-section and electrical resistivity are optimized for minimum heat conduction and ohmic resistance heat transfer to the cold gas. Thermal expansion or contraction of the leads is accommodated by flexible sections at the warm and cold end of the leads.

PROCESS FOR REFRIGERATING A BUSWAY FOR VERY LOW TEMPERATURE ELECTRICAL MATERIAL AND DEVICE FOR CARRYING SUCH

Supraleitende Magnetspule

Verfahren zur Herstellung von Fasern durch Schlitzen einess Bandes aus thermoplastischem Material und Vorrichtung zur Durchführung des Verfahrens

Dispositif à faible conductibilité thermique pour maintenir à distance deux parois se faisant face

Einrichtung zur Verbindung elektrisch leitender Drähte

Supraleitender Draht

Verbindung zwischen stabilisierten Supraleitern

Verfahren zur Herstellung einer Verbindung zwischen stabilisierten Supraleitern

Verfahren zur Herstellung einer Verbindung zwischen stabilisierten Supraleitern

Circuit supraconducteur

Cryostat comprenant un dispositif d'alimentation en courant d'un circuit électrique baigné par un liquide cryogénique

STROMZUFUEHRUNGSANORDNUNG FUER EINE ELEKTRISCHE EINRICHTUNG MIT EINEM AUF TIEFTEMPERATUR GEKUEHLTEN LEITER.

STROMZUFUEHRUNGSEINRICHTUNG, FUER EINE ELEKTRISCHE EINRICHTUNG MIT AUF TIEFTEMPERATUR GEKUEHLTEN LEITERN.

Stromkreis insbesondere Wicklung mit wenigstens einem Stromkreis-abschnitt aus einem Supraleiter und wenigstens einem Stromkreisabschnitt aus einem Leiter

Vorrichtung zur Abtrennung von in einer Flüssigkeit enthaltenen Gasblasen von der Flüssigkeit

Verfahren zur elektrischen Verbindung der Enden zweier Leiter, von denen mindestens einer aus einem hart-supraleitenden Material besteht, sowie eine elektrische Verbindung, hergestellt nach diesem Verfahren

Traversée isotherme isolante étanche entre deux enceintes

Stromzuleitungsvorrichtung für eine bei gegenüber einer äusseren Umgebung tieferer Temperatur, insbesondere bei der Temperatur eines verflüssigten Gases, arbeitende Anlage

Verfahren zum Kühlen eines Verbrauchers, der aus einem teilweise stabilisierten Supraleitungsmagneten besteht

Procédé de jonction d'éléments supraconducteurs et produit obtenu

Tieftemperaturanlage mit einem Kryostat

KUEHLMITTELANSCHLUSS AN EINER ERREGERSPULE.

Superconducting device with coil devices and cooling device, and vehicle fitted therewith

STRUCTURE FOR CURRENT LEAD FOR A PLANT OPERATING AT VERY LOW TEMPERATURE.

BROUGHT OF CURRENT HIGH VOLTAGE BETWEEN a SUPERCONDUCTIVE INSTALLATION BTC AND an END OF CONNECTION Room temperature Of a CABLE High voltage HAS

SUPERCONDUCTING CABLE JOINT

STRUCTURE OF THE TERMINAL PORTION OF A CABLE

Improvements with rollings up in sheets for transformers and in particular for cryotransformateurs

Fastening to low thermal conductibility

SUPERCONDUCTING CABLE JOINT

L'invention concerne une jonction de deux câbles aboutés, chaque câble comprenant autour d'un support central au moins une couche de phase constituée d'au moins une couche de matériau supraconducteur (1A, 1 B) et une couche de neutre concentriques (4A, 4B) et contenue dans une enveloppe (8) remplie de fluide cryogénique, lesdites couches de phase internes aboutés (1A, 1 B) étant dénudées et étant directement connectés. Selon l'invention, ladite couche de neutre (4A, 4B) de chaque câble est également dénudée, au moins un organe support de pontage (6, 60) est disposé entre lesdites couches de neutre dénudées (4A, 4B) et une couche de matériau conducteur ou supraconducteur de connexion électrique (7) de ces couches de neutre est disposée sur le dit organe support de pontage (6, 60).

Process of cooling of a supply of current for switchgear with very bassetempérature and device for its implementation

Procédé de refroidissement d'une amenée de courant entre une borne à température ambiante (7) et un appareillage électrique fonctionnant à très basse température à intensité variable, selon lequel on fait passer un fluide auxiliaire de refroidissement à température ambiante en échange de chaleur avec l'amenée de courant à partir d'un niveau intermédiaire entre la borne à température ambiante et l'appareillage électrique à très basse température et ce jusqu'à la borne à température ambiante, et dispositif pour sa mise en œuvre. On introduit le fluide auxiliaire de refroidissement à un niveau intermédiaire (17A) de l'amenée de courant lorsque l'intensité du courant dépasse un certain seuil et éventuellement tout ou partie du fluide auxiliaire de refroidissement à d'autres niveaux (14A), d'autant plus proches de l'appareillage électrique que l'intensité du courant est plus élevée. Method for cooling a current lead between a terminal at ambient temperature (7) and electrical equipment operating at very low temperature at variable intensity, according to which an auxiliary cooling fluid is passed through at ambient temperature in heat exchange with the supply of current from an intermediate level between the terminal at ambient temperature and the electrical apparatus at very low temperature and this up to the terminal at ambient temperature, and device for its implementation. The auxiliary cooling fluid is introduced at an intermediate level (17A) of the current supply when the intensity of the current exceeds a certain threshold and possibly all or part of the auxiliary cooling fluid at other levels (14A), d closer to the electrical equipment as the intensity of the current is higher.

Low-loss cryogenic power lead

L'invention concerne une amenée de courant cryogénique à faibles pertes. Elle a pour objet une amenée de courant cryogénique pour un élément supraconducteur 1 placé dans un cryostat 2, caractérisée en ce qu'au moins une partie est réalisée en un matériau supraconducteur présentant le phénomène de supraconductivité à une température nettement supérieure à celle pour laquelle ledit élément 1 présente l'état supraconducteur.

LOW TEMPERATURE APPARATUS

A CURRENT LEAD WITH A CONFIGURATION TO REDUCE HEAT LOAD TRANSFER IN AN ALTERNATING ELECTRICAL CURRENT ENVIRONMENT

A current lead with a configuration to reduce heat load transfer in an alternating electrical current (AC) environment is disclosed. The current lead may comprise a conductive material having a configuration for reducing heat load transfer across the current lead when an alternating electrical current (AC) is applied to the current lead. A temperature gradient a may be exhibited along a length of the current lead.

VACUUM HOUSING FOR A MAGNETIC RESONANCE APPARATUS

Disclosed is a vacuum housing (13) for a magnetic resonance apparatus (1), comprising a recess (25) for leading through lead wires (21, 29, 39) to elements located inside the vacuum housing (13), and at least one first bushing module (23A). Said first bushing module (23A) is provided with a first closing plate (31A) which is configured so as to vacuum-tightly seal the recess (25) along with at least one second closing plate (31B). The first bushing module (23A) is also provided with a first structural component (21) that is to be at least partially led through the recess during assembly of the bushing module (23A) and whose size defines a minimum size of the recess (25), which is greater than the size of the first closing plate (31A).

SUPERCONDUCTING HIGH-FIELD MAGNET COIL WITH SUPERCONDUCTING JOINTS

A superconducting high-field magnet coil (1; 27; 38) comprising at least one radially inner (2) and at least one radially outer coil section (3; 32; 33), wherein at least the radially inner coil section (2) is wound in a solenoid-shaped fashion with an HTS (high temperature superconductor) band conductor (14; 20; 36) and wherein at least one superconducting connection is provided between the radially inner coil section and the radially outer coil section is characterized in that the superconducting connection comprises a first superconducting joint (5; 39) between two HTS band conductors at which the HTS band conductor of the radially inner coil section is connected to at least one further HTS band conductor (6; 21, 22; 29; 40), flatly overlapping same, such that the two HTS band conductors mutually subtend an angle of between 30° and 150°, and with a second superconducting joint (7; 41) which is electrically connected in series with the first, and which is geometrically disposed in a region ...

CONTAINER FOR SUPERCONDUCTING APPARATUS AND SUPERCONDUCTING APPARATUS

The invention offers a container for a superconducting apparatus and a superconducting apparatus. The container mounts in it a superconducting coil as a member including a superconductor. The container is provided with a vacuum insulated container 20 as a housing case made of resin and provided with an opening, a lead electrode 50 as a metal member positioned such that it passes through the opening, and a combination of connecting members 63 and 65 that covers the opening, that connects the lead electrode 50 to the vacuum insulated container 20, and that is provided with a curved portion as a thermal-stress-alleviating portion. Having the foregoing structure, the container can suppress the development of separation and cracks at the portion where the metal member passes though and is fixed to the wall of the container that mounts in it a superconductor such as a superconducting coil.

CRYOGENIC MAGNET POWER SUPPLY

There is described a magnet assembly comprising a superconducting coil, a cryogenic system, a DC voltage source, an SMPS, current leads, and a controller. The cryogenic system comprises a cryostat and is configured to maintain the superconducting coil at an operating temperature below the critical temperature of the superconductor. The DC voltage is source located outside the cryostat. The SMPS is located inside the cryostat and configured to supply power from the DC voltage source to the superconducting coil. The SMPS comprises a voltage step-down transformer having a primary and a secondary winding. The current leads connect the DC voltage source to the SMPS. The controller is configured to cause the SMPS to supply a first amount of power to the magnet in order to ramp up the magnet to operating current, and a second amount of power to the magnet during steady state operation of the magnet, wherein the first amount of power is greater than the second amount of power.

Electric fault current limiter having superconducting elements inside a cryogenic vessel and bushings for connecting an external circuit

An electric fault current limiter (1) comprises a cryogenic vessel (2) and superconducting assemblies (5) consisting of high temperature type superconducting elements (HTSC) immersed in a liquid coolant (6) such as liquefied nitrogen. Bushings (25, 28) with conductors (17, 18) are associated with a main body (3) of the vessel (2) such that the conductors (17, 18) extend horizontally from a surrounding space into an ullage space (8) situated between a level (7) of the liquid coolant (6) inside the vessel (2) and a cover (4). The arrangement of the bushings (25, 28) according to the invention allows for removing the cover (4) without dismantling electrical connections between the current limiter (1) and a circuit to be protected as is necessary with prior art limiters.

Metallic current lead for cryogenic system

Metallic current lead for cryogenic system comprising a conductor, a first end of which is intended to be connected to an electric supply cable (10) located in a first medium (11) at ambient temperature and a second end of which is intended to be connected to a user device (14) located in a second medium (15) at 77 K, characterised in that the said conductor has the shape of a metal rod (1), the lateral wall of which is thermally insulated and the end faces (12, 13) of which are respectively secured to two metal heat-exchangers (2, 8) one immersed in the said first medium and the other in the said second medium. ...

DEVICE FOR ADDITIONAL POURING OF ULTRA LOW-TEMPERATURE LIQUID

PURPOSE: To make it possible to pour a large amount of liquid He without substantial loss, by adopting a metod in which, while a transfer tube is still warm, the He gas coming out of the tube outlet is discharged to the outside of the cryostat whereas, when the transfer tube is cooled sufficiently, the He is poured into the cryostat. CONSTITUTION: The main body 1 of the device for additionally pouring liquid He is provided at its upper end with a hole 3 for receiving a transfer tube 2 and at its lower end with a hole 4 for attaching a stop valve which is normally biased in the closing direction by a spring. At the same time, a gas discharge port 6 is formed at an upper lateral side portion of the main body. This main body 1 is fixed to the flange 7 of a cryostat such that the discharge port 6 is exposed to the outside. The tube 2 has not been cooled sufficiently in the period immediately after the start of pouring, so that the He is evaporated to become a gas 8 which is purged through the ...

NMR-Spektrometer umfassend eine supraleitende Magnetspule mit Wicklungen aus einer Supraleiterstruktur mit verketteten Bandstücken, die jeweils von unmittelbar aufeinanderfolgenden, weiteren Bandstücken überlappt werden

Ein NMR-Spektrometer (131) mit einer NMR-Magnetspule (91), die zumindest in einer Sektion (121) Wicklungen umfasst mit einem Leiter aus einer Supraleiterstruktur (1), umfassend mehrere Bandstücke (2, 2a, 7a–7e, 8a–8d, 15) von bandförmigem Supraleiter, wobei jedes Bandstück (2, 2a, 7a–7e, 8a–8d, 15) ein Substrat (3) und eine darauf abgeschiedene supraleitende Schicht (4) aufweist, und wobei die Bandstücke (2, 2a, 7a–7e, 8a–8d, 15) miteinander verbunden sind, wobei mindestens eines der Bandstücke (2, 2a, 7a–7e, 8a–8d, 15) als ein verkettetes Bandstück (2, 2a) ausgebildet ist, und wobei ein jedes verkettete Bandstück (2, 2a) jeweils mit wenigstens zwei weiteren Bandstücken (7a–7e) derart verbunden ist, dass die weiteren Bandstücke (7a–7e) zusammen im Wesentlichen mit der gesamten Länge (L) des verketteten Bandstücks (2, 2a) überlappen. Die Erfindung stellt ein verbessertes NMR-Spektrometer bereit, insbesondere wobei eine Magnetspule des Spektrometers besonders hohe Magnetfeldstärken in einem ...

ELEKTRISCHER ANSCHLUSS INSBESONDERE ZUR VERBINDUNG ZWEIER IM VAKUUM VORGESEHENER, GEKUEHLTER LEITER

STROMVERTEILUNG ZWISCHEN MEHREREN STRÄNGEN EINER SUPRALEITENDEN WICKLUNG

Stromzuleitung für supraleitendes Magnetsystem ohne flüssiges Helium

Supraleitende Stromzuführung

Es wird eine Stromzuführung (3) für eine supraleitende Spuleneinrichtung (1) angegeben, umfassend- wenigstens einen ersten Leitungsteil (13) mit wenigstens einem ersten Leiterelement (31a), welches wenigstens einen supraleitenden Draht (33) aufweist,- wobei das erste Leiterelement (31) in einer helixförmigen Wicklung angeordnet ist.Weiterhin wird eine supraleitende Spuleneinrichtung (1) mit wenigstens einer solchen Stromzuführung (3) und einer supraleitenden elektrischen Spulenwicklung (5) angegeben.

Low field, cryogenic, termination reservoir

Current leads for cryogenically cooled equipment

Cooled superconducting joints

A cooled superconducting joint 18 comprises: a joint cup 20 in which lengths of superconducting filaments 14 are placed; a superconducting material that fills the joint cup 20, in contact with the superconducting filaments 14; and a cryogen-carrying pipe 24 (e.g. thermosiphon pipe) that extends into the joint cup 20 and is in thermal and mechanical contact with the superconducting joint 18. The superconducting material extends around the pipe 24, within the joint cup 20. The pipe 24 may be made of electrically non-conducting material or it may be made of electrically conducting material with an electrically isolating layer 26 provided on the pipe surface, such that the superconducting joint 18 is electrically isolated from the pipe 24. The joint cup 20 may be provided with a hole 22 in its base, through which the pipe 24 extends. A plurality of superconducting joints 18 may be formed in a corresponding plurality of joint cups 20, the pipe 24 passing through each of the joint cups. In an ...

Improvements in or relating to electrical connectors for cryostats

... 1,061,751. Terminals; carrying conductors through partitions. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 20, 1964 [March 1, 1963], No. 8262/63. Heading H2E. Current is supplied to a device in a cryostat through a conductor arranged in a duct conveying gas which has evaporated from the cryogenic liquid away from the cryostat, the gas extracting heat, from the conductor and so reducing the amount of heat conducted into the cryostat. As shown, a device 3 immersed in liquid helium in a Dewar flask 1 is connected to conductors 4, 5 each connected to a correspond - ing input conductor 10, 11 through a helical crinkled copper strip 8, 9. The strips are wound between one another around a common cylinder 6 of resin-bonded paper and enclosed by a similar cylinder 7, and the gas passes between the strips and out through a vent 12. The system may be a closed one in which the gas is reused. One of the helical passages may be filled with glass fibre, and the lower end of cylinder 6 may be replaced ...

Superconductor current leads

A high temperature superconducting (HTS) current lead comprises an HTS conductor 11 which is thermally and electrically connected to a shunt 21. When a quench event occurs, current flows through the shunt 21, via voltage taps 30 and 32, and generates heat in a quench heater 34 which is in thermal contact with a superconducting device 26. This results in a controlled quenching of the superconducting device 26 before a burn-out can occur. The shunt 21 may comprise stainless steel. A section of HTS 36 may be isothermal over its length and have a high heat capacity mass. The lead may be fully electrically shunted along its length with the shunt 21 soldered by an indium-based soldered. The first voltage tap 32 may be made of copper and the second voltage tap 30 may be made of brass, where the first tap 32 is at a lower temperature than the second tap 30. The voltage taps 30 and 32 may be made from an HTS material.

Cryogen pressure vessel assembly for superconducting magnets

LOW FIELD, CRYOGENIC, TERMINATION RESERVOIR

COOLANT SUPPLY ARRANGEMENT FOR AN ELECTRICAL DEVICE

... 1425537 Concentric-tube heat exchangers; refrigerating SIEMENS AG 6 June 1974 [22 June 1973] 25254/74 Headings F4H and F4S In an arrangement in which a cryogenic coolant such as liquid helium is supplied through a tube 8 to an electrical device 23 having high voltage conductors requiring a low temperature coolant, the coolant tube 8 is encircled by a fluid-cooled radiation shield 12, the whole being enclosed in a vacuum vessel 10, and the cooling medium flow through the radiation shield comprising at least one outward flow generally parallel to the coolant flow through the tube 8, and at least one return flow in the opposite direction. The vessel 10 may be a "sealed" vacuum vessel or it may be a vessel connected to an evacuation source, e.g. via a connection 11. As shown, the radiation shield comprises a concentric-tube assembly providing therein flow and return paths 13, 17, respectively, for a cooling medium such as liquid nitrogen or liquid hydrogen. The radiation shield is spaced from ...

Superconducting joints

TERMINATING STRUCTURE OF AN ELECTRIC CABLE

... 1419133 Cable terminations FUJIKURA CABLE WORKS Ltd 2 Feb 1973 [2 Feb 1972] 5421/73 Heading H2E A termination providing an optimum temperature gradient comprises a connecting lead wire 8 attached to the end of the terminated super conductor 2, a casing 9 surrounding the end of the super conductor 2 and filled with circulated liquid helium 5, a hollow bush 32 surrounding an intermediate portion of the lead wire 8 adjacent the casing 7 and filled with circulated liquid helium 39, a tank 41 having a portion of the casing 9 and one end 36 of the bush 32 encased therein and filled with circulated liquid helium 70, a bush 13 surrounding an intermediate portion of the lead wire 8 adjacent the other end 35 of the bush 32 and filled with circulated gaseous nitrogen 22, a tank 44 having one end 17 of the bush 13 and the other end 35 of the bush 32 encased therein and filled with circulated liquid nitrogen 46, the other end 16 of the bush 13 being surrounded by an insulator 28 containing insulating ...

SUPERCONDUCTING APPARATUS

CURRENT FEED FOR SUPERCONDUCTING DEVICES

COIL FOR PRODUCING A MAGNETIC FIELD

COOLANT FEED FOR HIGH VOLTAGE APPARATUS

GRANULAR SUPERCONDUCTING JOINT

A superconducting joint that structurally binds a first superconducting segment to a second superconducting segment. The first and second superconducting segment each include corresponding areas containing a granular superconducting sub-stance formed by a first element and a second element. The superconducting joint includes a solid non-superconducting binding formed from a source of the first element and a source of the second element combined to produce the granular superconducting substance around the solid non- superconducting binding to permit for the flow of superconducting current through the first super-conducting segment and the second superconducting segment.

MIXED HIGH VOLTAGE CURRENT SUPPLY

l'invention concerne une amenée mixte haute tension traversante entre un câble d'énergie haute tension et une application supraconductrice l'amenée comprenant selon un axe d'amenée (3): - une extrémité conductrice amont (4) à température ambiante - des moyens conducteurs axiaux (5) - des moyens supraconducteurs axiaux (6) à haute température critique - une extrémité conductrice terminale (7) - un échangeur de chaleur (8) à vapeur d'hélium ou équivalent, pour refroidir les moyens conducteurs axiaux (5), étanche par rapport aux moyens supraconducteur (6) et au cryostat (2) et - une canalisation d'alimentation (9), et une canalisation d'échappement (10), des vapeurs d'hélium, reliées à l'échangeur de chaleur (8), selon l'invention : au moins une partie (4a) de l'extrémité conductrice amont (4), les moyens conducteurs axiaux (5) et les moyens supraconducteurs axiaux (6) à haute température critique sont entourés d'un manchon axial continu (11) électriquement isolant, les canalisations d'alimentation (9) et d'échappement (10) sont axiales et intégrées dans l'amenée, et les canalisations d'alimentation (9) et d'échappement (10) comprennent chacune un embout de liaison (12, 13) électriquement isolant. the invention relates to a mixed high voltage feed through between a high voltage power cable and a superconductive application the feed comprising along a feed axis (3): - an upstream conductive end (4) at room temperature - means axial conductors (5) - axial superconductive means (6) at high critical temperature - a terminal conductive end (7) - a heat exchanger (8) with helium vapor or equivalent, for cooling the axial conductive means (5) tight relative to the superconductive means (6) and to the cryostat (2) and - a supply pipe (9), and an exhaust pipe (10), helium vapors, connected to the heat exchanger (8) according to the invention: at least part (4a) of the upstream conductive end (4), the axial ...

COOLANT SUPPLY ARRANGEMENT FOR AN ELECTRICAL DEVICE

Current lead metal for cryogenic system.

Improvements in and relating to an Electrical Connection.

High temperature superconductor current lead for connecting a superconducting load system to a current feed point

A current lead ( 1 ) for connecting a superconducting load system ( 5 ), in particular, a magnet coil, to a current feed point ( 3 a ) that is at a higher temperature than the load system ( 5 ) comprises a flat, elongated carrier ( 6 ) and a plurality of mechanical and electrical parallel high-temperature superconductors (HTSC) ( 10 ), wherein the HTSCs ( 10 ) are disposed side by side on the carrier ( 6 ). The carrier ( 6 ) is made of stainless steel, and a plurality of HTSCs ( 10 ) are each disposed side by side on two opposite carrier ( 6 ) sides of the carrier. The carrier ( 6 ) is constituted in the shape of a plate with cut-outs ( 15; 15 a - 15 d ). The current lead has a high current capacity and low thermal conductivity and provides improved emergency conduction properties in case of failure of the superconductivity in the HTSC.

ARTICULATED GUIDE TUBE

A magnetic resonance (MR) system includes: a cryogenic vessel disposed around superconducting coils. The cryogenic vessel is configured to receive coolant. The MR system also includes a guide tube connected to the cryogenic vessel, and configured to provide the coolant, and an electrical lead. The guide tube includes a joint about which a first portion of the guide tube pivots relative to a second portion. 1. A magnetic resonance (MR) system , comprising:a cryogenic vessel disposed around superconducting coils, the cryogenic vessel configured to receive coolant; anda guide tube connected to the cryogenic vessel, and configured to provide the coolant, and an electrical lead, the guide tube comprising at least one tube and a joint about which a first portion of the at least one tube of the guide tube pivots relative to a second portion.2. The MR system of claim 1 , wherein the at least one tube of the guide tube comprises:a first tube, a second tube, and a third tube, each of the tubes comprising respective first and second sections, each configured to rotate about the joint.3. The MR system of claim 2 , wherein the first claim 2 , second and third tubes have a first height in a first position claim 2 , and a second height in a second position claim 2 , the second height being less than the first height.4. The MR system of claim 3 , wherein claim 3 , in the second position claim 3 , the first portions of the respective first claim 3 , second claim 3 , and third tubes are disposed at an angle of approximately 90° relative to the second portions of the respective first claim 3 , second claim 3 , and third tubes.5. The MR system of claim 2 , wherein the first claim 2 , second claim 2 , and third tubes each have proximal and distal ends claim 2 , wherein the distal ends are disposed in the cryogenic vessel.6. The MR system of claim 5 , wherein the electrical lead comprises a ramping lead and an unramping lead claim 5 , and the first and second tubes are configured to ...

Detachable cryostat

A detachable cryostat includes many novel structures. Two radiation shields are installed in the detachable cryostat. One of the radiation shields is cooled by the second-stage cold chamber utilized to contain a cryogen, and the other one is cooled by the first-stage cold head of the cryocooler. These structures are both used for reducing heat loads from an outside. The resilient supporting device, the resilient circular sleeve, the bellows and the conductive blocks are utilized to achieve excellent thermal contact and complete thermal isolation between the cryocooler and the cryogen. A detachable binary current lead device can be introduced in the detachable cryostat, wherein, the detachable binary current lead includes a superconducting current lead and a copper current lead. When the installation adjustment mechanism is tightly pressed and loosened, it can enable the superconducting current lead to contact and separate from the copper current lead.

INPUT/OUTPUT SYSTEMS AND DEVICES FOR USE WITH SUPERCONDUCTING DEVICES

Systems and devices for providing differential input/output communication with a superconducting device are described Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic. multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The ace between the cryogenic tubular assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable. 147.-. (canceled)48. A feed-through structure to receive printed circuit board cable , comprising:a plate having a first surface and a second surface opposite the first surface, wherein the first surface of the plate includes at least one elongated through-hole sized and dimensioned to receive a printed circuit board cable, and wherein the at least one elongated through-hole extends through the second surface of the plate;wherein the feed-through structure includes a cavity adjacent to the second surface of the plate such that the at least one elongated through-hole extends through the plate and into the cavity, and wherein the cavity includes an open end to receive a sealing agent to establish a substantially hermetic seal in the at least one elongated through-hole.49. The feed-through structure of wherein the plate further comprises:at least one additional elongated through-hole, wherein each of the at least one additional elongated through-holes is sized and dimensioned to receive a respective printed circuit board cable, and wherein each of the elongated through-holes extends through the plate and into the cavity.50. The feed-through structure of wherein the cavity is formed ...

LEAD AND THERMAL DISCONNECT FOR RAMPING OF AN MRI OR OTHER SUPERCONDUCTING MAGNET

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 (). 1. An automated electrical connect/disconnect device for electrically connecting with and electrically disconnecting from a superconducting magnet winding , the device comprising:a contactor having an actuator and electrical terminals that are electrically isolated from each other when the contactor is open and electrically connected when the contactor is closed;a high temperature superconductor (HTS) lead having a superconducting critical temperature (TC,HTS) of at least 25K; andone or more electrical conductors electrically connecting a magnet side electrical terminal of the contactor and a first end of the HTS lead, a second end of the HTS lead connected to or configured for connection to the superconducting magnet winding.2. The device of further comprising:{'b': '1', 'a first stage thermal station thermally connected with the first end of the HTS lead, the first stage thermal station having a first stage temperature (T) that is lower than the superconducting critical temperature (TC,HTS) of the HTS lead.'}3. The device of further ...

Superconducting Joints

A superconducting joint arrangement for superconducting magnets, having an elongate joint arranged between superconducting filaments of superconducting wires of one or more superconducting coils, and excess wire provided between the elongate joint and the one or more superconducting coils. 122-. (canceled)23. A superconducting joint arrangement for superconducting magnets , comprising:an elongate joint arranged between superconducting filaments of superconducting wires of one or more superconducting coils; andexcess wire provided electrically between the elongate joint and the one or more superconducting coils,wherein the elongate joint is in thermal contact with at least one of the superconducting wires at a location electrically between the one or more superconducting coils and the excess wire.24. The superconducting joint arrangement according to claim 23 , wherein the elongate joint is in electrical contact with at least one of the superconducting wires at a location electrically between the one or more superconducting coils and the excess wire.25. The superconducting joint arrangement according to claim 23 , wherein the elongate joint is bound to at least one of the superconducting wires by binding wire.26. The superconducting joint arrangement according to claim 23 , wherein the elongate joint comprises a superconducting solder.27. The superconducting joint arrangement according to claim 26 , wherein the elongate joint is soldered to the at least one superconducting wire.28. The superconducting joint arrangement according to claim 26 , wherein the elongate joint and an adjacent part of at least one superconducting wire are cast into a solid block of superconducting alloy or compound.29. The superconducting joint arrangement according to claim 28 , wherein dimensions of the solid block of superconducting alloy or compound in directions perpendicular to the at least one superconducting wire are less than 20 mm.30. The superconducting joint arrangement according ...

MAGNETIC RESONANCE SCANNER WITH EMBEDDED QUANTUM COMPUTER

The present disclosure relates to a magnetic resonance (MR) scanner and magnetic resonance imaging (MRI) system. The MR scanner includes a superconducting magnet, a superconducting quantum processor, a first cooling system surrounding the superconducting magnet, and a second cooling system surrounding the superconducting quantum processor. The second cooling system is embedded in the first cooling system. 1. A magnetic resonance (MR) scanner comprising:a superconducting magnet;a superconducting quantum processor; and a first cooling system surrounding the superconducting magnet; and', 'a second cooling system surrounding the superconducting quantum processor, wherein the second cooling system is embedded in the first cooling system., 'a multi-stage refrigeration system comprising2. The MR scanner of claim 1 , wherein the superconducting quantum processor is positioned within a region inside coils of the superconducting magnet such that a magnetic field at a position of the superconducting quantum processor is comparatively low.3. The MR scanner of claim 2 , wherein the superconducting magnet comprises main field coils and shield coils and the superconducting quantum processor is positioned in a region inside the superconducting magnet coils in-between the main field coils and the shield coils such that a local magnetic field at the position of the superconducting quantum processor is reduced by a cancelling effect excited by the main field coils and the shield coils.4. The MR scanner of claim 3 , further comprising:thermal radiation shields configured for thermally insulating cooling stages of the first cooling system and the second cooling system.5. The MR scanner of claim 1 , wherein the first cooling system comprises two cooling stages and the second cooling system comprises two additional cooling stages.6. The MR scanner of claim 5 , further comprising:thermal radiation shields configured for thermally insulating the two cooling stages of the first cooling ...

SUPERCONDUCTING STRUCTURE FOR CONNECTING TAPE CONDUCTORS, IN PARTICULAR HAVING A CORRUGATED OR SERRATED SEAM

A superconductor structure (), having a first strip piece (), a second strip piece () and a third strip piece (). Each strip piece has a substrate () and a superconducting layer () deposited thereon. End sections of the second and third strip pieces are connected via a layer () made of a first normally conducting material to the first strip piece, the second and third strip pieces overlap with the first strip piece, the superconducting layers of the second and third strip pieces face the superconducting layer of the first strip piece, and a seam () with a defined path length is formed between the end sections of the second and third strip pieces. The seam extends over an extension region () of the superconductor structure. Splicing strip pieces together in this manner achieves a high current load capacity. 1. A superconductor structure , comprising:{'b': 1', '2', '3, 'a first strip piece having a first width B, a second strip piece having a second width B, and a third strip piece having a third width B,'}wherein the first, second and third strip pieces each comprises a substrate and a superconducting layer deposited on the substrate,wherein one end section of the second strip piece and one end section of the third strip piece are connected via a layer made from a first normally conducting material to the first strip piece, wherein the second and third strip pieces overlap with the first strip piece in a longitudinal direction of the structure,wherein the superconducting layers of the second and the third strip pieces face the superconducting layer of the first strip piece,{'b': 2', '3, 'wherein the end sections of the second and the third strip pieces form a seam, wherein the seam has a path length PL such that PL>2*B and PL>2*B,'}andwherein the seam extends in the longitudinal direction over an extension region of the superconductor structure having a longitudinal length LBN such that 0.5*PL≥LBN.2. The superconductor structure according to claim 1 , wherein the ...

Superconducting magnet

This superconducting magnet includes: a superconducting coil that is formed by winding a first superconducting wire rod; a second superconducting wire rod, which is disposed by being thermally in contact with and electrically insulated from the superconducting coil, and which has a superconducting transition temperature that is lower than that of the first superconducting wire rod; voltage terminals that are disposed at a plurality of areas of the second superconducting wire rod; a voltmeter connected to the voltage terminals; and a switch circuit connected to the voltmeter. The switch circuit interrupts a current when receiving an output from the voltmeter, the current being one that is to be supplied to the superconducting coil.

Quench protection in high-temperature superconducting magnets

A superconducting magnet comprising: a field coil comprising high temperature superconducting material and having a joint; a bypass resistance comprising a non-superconducting conductive material, wherein the bypass resistance is electrically connected to the field coil on both sides of the joint; wherein the joint is openable to break the field coil such that current flowing in the superconductor flows though the bypass resistance in order to dump energy from the field coil, and wherein the superconducting magnet is configured to open the joint in response to detection of a quench in the magnet.

CYLINDRICAL SUPERCONDUCTING MAGNET

A cylindrical superconducting magnet structure () comprising two superconducting main coils () respectively axially spaced apart by a spacer coil (), said main coils and said spacer coil being bonded together in a single self-supporting structure. 1. A cylindrical superconducting magnet structure comprising two cylindrical superconducting main coils axially spaced apart by an annular spacer coil , said main coils and said spacer coil being directly bonded together in a single self-supporting structure by a resin , wherein the spacer coil is formed of resistive wire , and is present at a radial position corresponding to a radial mid-point of each main coil.2. A cylindrical superconducting magnet structure according to comprising a quench propagation circuit claim 1 , wherein the spacer coil is electrically connected to the quench propagation circuit.3. A cylindrical superconducting magnet structure according to claim 1 , wherein the spacer coil is electrically connected as a closed loop.4. A cylindrical superconducting magnet structure comprising two cylindrical superconducting main coils axially spaced apart by an annular spacer coil claim 1 , said main coils and said spacer coil being directly bonded together in a single self-supporting structure by a resin claim 1 , wherein the spacer coil is formed of superconducting wire claim 1 , and the spacer coil and the main coils are electrically connected such that the spacer coil carries a current in an opposite direction from current carried by the main coils.5. A cylindrical superconducting magnet structure comprising two cylindrical superconducting main coils axially spaced apart by an annular spacer coil claim 1 , said main coils and said spacer coil being directly bonded together in a single self-supporting structure by a resin claim 1 , wherein ends of the spacer coil are electrically unconnected.6. A cylindrical superconducting magnet structure comprising two cylindrical superconducting main coils axially spaced ...

SUPPORT STRUCTURES FOR HTS MAGNETS

Disclosed herein is a support structure for a field coil comprising high temperature superconductor, HTS. The support structure comprises an internal load transfer member configured to attach at one end to the field coil and at another end to an inner surface of a vacuum vessel containing the field coil and configured to support the field coil. At least part of the internal load transfer member is configured to remain at room temperature during operation of the HTS magnet and is not cooled by the cooling system used to cool the field coil. 1. A support structure for a field coil comprising high temperature superconductor , HTS , the support structure comprising:an internal load transfer member configured to attach at one end to the field coil and at another end to an inner surface of a vacuum vessel containing the field coil and configured to support the field coil against electromagnetic forces acting on the field coil;wherein at least part of the internal load transfer member is configured to remain at room temperature during operation of the field coil.2. A support structure according to claim 1 , and comprising an external support member configured to support the inner support member claim 1 , wherein the external support member is integrated with the vacuum vessel or attached to an outer surface of the vacuum vessel.3. A support structure according to claim 1 , wherein the internal load transfer member is configured to attach to the upper inner surface of the vacuum vessel claim 1 , and to an upper portion of the field coil.4. A support structure according to claim 1 , wherein the internal load transfer member comprises a laminated material claim 1 , with a plane of the laminated material being perpendicular to a load axis of the internal load transfer member.5. A support structure according to claim 4 , wherein the laminated material is a glass fibre epoxy material.6. A support structure according to claim 1 , wherein the field coil is a toroidal field coil ...

A CURRENT FEED-THROUGH

A current feed-through comprising has a mounting feature, a member accessible from both sides of the mounting feature and an electrical isolator, connecting the mounting feature and the member in respective positions, to ensure mechanical integrity and electrical isolation between the mounting feature and the member. 1. A current feed-through comprising:a mounting feature;a member accessible from both sides of the mounting feature;an electrical isolator, connecting the mounting feature and the member in respective positions, to ensure mechanical integrity and electrical isolation between the mounting feature and the member, andsaid member having a bore therein which a superconducting wire is located and is accessible from both sides of the mounting feature, the superconducting wire being bonded and sealed to the bore.2. A current feed-through according to claim 1 , wherein the bore has a cross-section that closely matches a cross-section of the superconducting wire with a predetermined clearance.3. A current feed-through according to claim 2 , wherein the bore has an approximately rectangular cross-section.4. A current feed-through according to claim 1 , wherein the member is electrically conductive.5. A current feed-through according to claim 4 , wherein the electrically conductive member has an electrically isolating layer between the member and the superconducting wire.6. A current feed-through according to claim 1 , wherein the member is formed of a ceramic.7. A current feed-through according to claim 1 , wherein the superconducting wire is soldered or brazed to the member to provide a seal.8. A current feed-through according to claim 1 , wherein the superconducting wire is bonded and sealed to the member by a resin.9. A current feed-through according to claim 1 , wherein the mounting feature and the electrical isolator are formed by a single piece of an electrically isolating material.1020. A current feed-through according to claim 1 , further comprising a cap ...

Superconduting coil device comprising coil winding and contacts

A superconducting coil device includes at least one coil winding, including at least one first and one second superconducting strip conductor, the first and second strip conductors each having a superconducting layer and a contact side provided with a contact layer; at least one first contact electrically connecting the contact side of the first strip conductor to an external circuit via a first contact piece; at least one second contact electrically connecting the contact side of the second strip conductor to the external circuit via a second contact piece; and a third contact electrically connecting the first and second strip conductors via the contact layer of the first and the second strip conductor within the coil winding, wherein the contact side of the first strip conductor has a different orientation relative to a center of the coil winding than the contact side of second strip conductor.

SUPERCONDUCTING CURRENT LEAD, SUPERCONDUCTING CURRENT LEAD DEVICE, AND SUPERCONDUCTING MAGNET DEVICE

A superconducting current lead supplying current to a superconducting device includes a plurality of electrode members, a support rod that is arranged between the plurality of electrode members so as to connect the plurality of electrode members each other, and a plurality of thin multi-layer rare-earth-based superconducting wires, each of which has a tape shape and includes a main surface and both end portions being connected to each of the plurality of electrode members, and each of which is arranged on an outer surface of the support rod, wherein an angle θ is 40-60 degrees that is formed by each of the main surfaces adjacent to each other in a circumferential direction of the support rod on the outer surface of the support rod. 1. A superconducting current lead supplying current to a superconducting device comprising:a plurality of electrode members;a support rod that is arranged between the plurality of electrode members so as to connect the plurality of electrode members each other; anda plurality of thin multi-layer rare-earth-based superconducting wires, each of which comprises a main surface and both end portions being connected to each of the plurality of electrode members, and each of which is arranged on an outer surface of the support rod and has a tape shape, wherein an angle θ is 40-60 degrees that is formed by each of the main surfaces adjacent to each other in a circumferential direction of the support rod on the outer surface of the support rod.2. The superconducting current lead according to claim 1 , wherein a cross-section of the support rod comprises a multangular shape comprising three or more attachment surfaces on an outer circumferential of the support rod claim 1 , and among the three or more attachment surfaces claim 1 , each of the plurality of thin multi-layer rare-earth-based superconducting wires is arranged at two or more of the attachment surfaces.3. The superconducting current lead according to claim 1 , wherein each of the ...

Superconducting Device With Coil Devices And Cooling Device

The present disclosure relates to a superconducting apparatus. The embodiments may include a system comprising at least two electrical coil devices and a cooling apparatus for cooling the coil devices with the aid of a coolant. For example, a superconducting apparatus may include: two electrical coil devices, wherein at least one comprises a superconducting coil device; a cooling apparatus for the coil devices; and a first connecting line between the two electrical coil devices including both a first electrical conductor connecting the two coil devices and a first coolant pipe transporting coolant between the two coil devices.

AUTOMATIC CURRENT SWITCHING OF CURRENT LEADS FOR SUPERCONDUCTING MAGNETS

The invention provides for magnetic resonance imaging system () comprising a superconducting magnet () with a first current lead () and a second current lead () for connecting to a current ramping system (). The magnet further comprises a vacuum vessel () penetrated by the first current lead and the second current lead. The magnet further comprises a magnet circuit () within the vacuum vessel. The magnet circuit has a first magnet circuit connection () and a second magnet circuit connection (). The magnet further comprises a first switch () between the first magnet connection and the first current lead and a second switch () between the second magnet connection and the second current lead. The magnet further comprises a first current shunt () connected across the first switch and a second current shunt () connected across the second switch. The magnet further comprises a first rigid coil loop () operable to actuate the first switch. The first rigid coil loop forms a portion of the first electrical connection. The magnet further comprises a second rigid coil loop () operable to actuate the second switch. The second rigid coil loop forms a portion of the second electrical connection. 1. A magnet for generating a magnetic field , wherein the magnet is a superconducting magnet , wherein the magnet comprises: a first current lead; a second current lead; a vacuum vessel , wherein the first current lead and the second current lead are located on an exterior surface of the magnet and penetrate the vacuum vessel; a magnet circuit for generating the magnetic field , wherein the magnet circuit is within the vacuum vessel; a first magnet circuit connection; a second magnet circuit connection , wherein the first magnet circuit connection and the second magnet circuit connection provide an electrical connection to the magnet circuit; a first switch for switching a first electrical connection between the first magnet connection and the first current lead; a second switch for ...

INPUT/OUTPUT SYSTEMS AND DEVICES FOR USE WITH SUPERCONDUCTING DEVICES

Systems and devices for providing differential input/output communication with a superconducting device are described. Each differential I/O communication is electrically filtered using a respective tubular filter structure incorporating superconducting lumped element devices and high frequency dissipation by metal powder epoxy. A plurality of such tubular filter structures is arranged in a cryogenic, multi-tiered assembly further including structural/thermalization supports and a device sample holder assembly for securing a device sample, for example a superconducting quantum processor. The interface between the cryogenic tubular filter assembly and room temperature electronics is achieved using hermetically sealed vacuum feed-through structures designed to receive flexible printed circuit board cable. 1. (canceled)2. An input/output system for use with a superconducting device sample , the input/output system comprising:a first tier including a first set of electrical filter structures, wherein each of the electrical filter structures in the first set of electrical filter structures comprises a respective lumped element filter that is at least partially contained within a respective enclosure, and wherein each of the electrical filter structures in the first set of electrical filter structures has an input end and an output end;a first set of electrical signal paths, each of the electrical signal paths in the first set of electrical signal paths including a filter input portion, a filter portion, and a filter output portion, wherein the filter input portion of each respective one of the electrical signal paths in the first set of electrical signal paths communicably couples to the input end of a respective one of the electrical filter structures from the first set of electrical filter structures, the filter portion of each respective one of the electrical signal paths in the first set of electrical signal paths includes at least a portion of the lumped element ...

包括具有由带有联结带段的超导结构组成的绕组的超导励磁线圈的nmr波谱仪

本发明涉及一种NMR波谱仪(131)，它包括NMR励磁线圈(91)，所述NMR励磁线圈在至少一个节段(121)中具有绕组，所述绕组包括由超导结构(1)组成的导体，所述超导结构具有带状的超导体的多个带段(2、2a、7a‑7e、8a‑8d、15)，其中每个带段(2、2a、7a‑7e、8a‑8d、15)具有柔性的基质(3)和沉积在基质上的超导层(4)，带段(2、2a、7a‑7e、8a‑8d、15)分别具有20m或更大的长度，并且带段(2、2a、7a‑7e、8a‑8d、15)相互连接，其中至少一个带段(2、2a、7a‑7e、8a‑8d、15)构造成联结带段(2、2a)，并且每个联结带段(2、2a)分别与至少两个其他带段(7a‑7e)这样连接，使得所述其他带段(7a‑7e)一起与联结带段(2、2a)的整个长度(L)至少95％重叠。本发明提供一种改善的NMR波谱仪，波谱仪的励磁线圈尤其是可以在样品空间中产生特别高的磁场强度并且是低漂移的。

Superconducting quick switch

A magnet system for generating a magnetic field may include a superconducting magnet, a switch, and a heater element thermally coupled to the switch. The superconducting magnet is structured to generate magnetic fields, and the switch includes a non-inductive superconducting current carrying path connected in parallel to the superconducting magnet. In general, the switch is structured to only carry a level of current that is a portion of the current required to obtain a full field by the superconducting magnet.

Superconducting device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

电流导线、超导系统及制作此电流导线的方法

本发明揭示一种用以减少于交流电环境中热负荷转移的电流导线、超导系统及制作此电流导线的方法。电流导线可能包括导电材料，包括配置，其中当交流电应用到电流导线时，配置用以在电流导线中减少热负荷转移，其中温度梯度沿着电流导线的长度展现。

Current lead wire system for superconducting magnet

本发明揭示一个超导磁体的电流引线系统，该电流引线系统包括正极电流引线及负极电流引线、分别与该正极及负极电流引线的一端热耦合的第一及第二导热件、一穿过该第一及第二导热件的冷却剂通道、以及一与冷却剂通道连通的冷却源。通过在该冷却剂通道中传输冷却剂，以冷却所述正极及负极电流引线的一端。

Superconducting coil

The present invention relates to a superconducting coil. A thermally conductive wire material expanding a heat transfer area and an electrical transmission area is wound around the outside of a superconducting wire material and an outer terminal is installed in the wire material while surrounding an entire outer circumference of the thermally conductive wire material. Therefore, the present invention improves an anti-cooling and an anti-heating performance and eliminates a deviation of a finished size and prevents deformation.

The distributed electric current of large-scale superconducting Tokamak magnet and cold matter transmission feeder

本发明公开一种大型超导托卡马克磁体的分布式电流和冷质传输馈线，包括电流引线终端盒；两根高温超导电流引线被置入电流引线终端盒之中，并通过超导接头一与超导电缆一形成电连接；沿电流引线终端盒向内，与其连接的是过渡馈线组件；沿过渡馈线组件向内连接的是内部馈线组件。本发明提供的馈线之间互不干涉，可独立完成加工装配，其安装位置可布置在最适合与对应磁体连接的位置，降低了装配难度，节省了装置内部的连接空间，同时可依据建筑物布局分布在建筑物的不同层次，有利于实施日常维护。

Manufacture of superconductive coil

Support structures for htsc-magnets

Изобретение относится к опорной конструкции для катушки поля, содержащей высокотемпературный сверхпроводник, ВТСП. Опорная конструкция содержит внутренний элемент переноса нагрузки, выполненный с возможностью прикрепления на одном конце к катушке поля, а на другом конце к внутренней поверхности вакуумного сосуда, содержащего катушку поля, и выполненный с возможностью поддержки катушки поля. По меньшей мере часть внутреннего элемента переноса нагрузки выполнена с возможностью оставаться при комнатной температуре во время работы ВТСП-магнита и не охлаждается системой охлаждения, используемой для охлаждения катушки поля. Криостат для катушки поля, содержащей высокотемпературный сверхпроводник, ВТСП, содержит множество опорных конструкций, а также вакуумный сосуд, вмещающий внутренний опорный элемент и выполненный с возможностью вмещать катушку поля. Техническим результатом является повышение устойчивости опорных конструкций для высокотемпературных сверхпроводников к тепловым и механическим нагрузкам в условиях работы термоядерного реактора. 6 н. и 12 з.п. ф-лы, 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 722 990 C2 (51) МПК H02K 55/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H02K 55/04 (2019.08) (21)(22) Заявка: 2018111804, 02.09.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ТОКЕМЕК ЭНЕРДЖИ ЛТД (GB) Дата регистрации: 05.06.2020 04.09.2015 GB 1515726.6 (43) Дата публикации заявки: 07.10.2019 Бюл. № 28 (56) Список документов, цитированных в отчете о поиске: WO 2007033858 A1, 29.03.2007. EP 1258973 A3, 20.11.2002. DE 2523007 A1, 02.12.1976. EP 156017 A1, 02.10.1985. RU 2491674 C2, 27.08.2013. (45) Опубликовано: 05.06.2020 Бюл. № 16 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.04.2018 2 7 2 2 9 9 0 Приоритет(ы): (30) Конвенционный приоритет: R U 02.09.2016 (72) Автор(ы): БЭЙНЭМ Элуин (GB), НУНАН Пол (GB) GB 2016/052718 (02.09.2016) C 2 C 2 (86) ...

Cryogenically cooled equipment comprising current leads for electric equipment

一种通过脉冲管制冷机致冷且包括电气设备的低温保持器，其中电气设备有一电气导体，所述电气导体与脉冲管制冷机的一个或多个管子保持热力接触和机械接触。

SUPPORT STRUCTURES FOR HTSC MAGNETS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 111 804 A (51) МПК H02K 55/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018111804, 02.09.2016 (71) Заявитель(и): ТОКЕМЕК ЭНЕРДЖИ ЛТД (GB) Приоритет(ы): (30) Конвенционный приоритет: 04.09.2015 GB 1515726.6 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.04.2018 R U (43) Дата публикации заявки: 07.10.2019 Бюл. № 28 (72) Автор(ы): БЭЙНЭМ Элуин (GB), НУНАН Пол (GB) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/037471 (09.03.2017) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Опорная конструкция для катушки поля, содержащей высокотемпературный сверхпроводник, ВТСП, содержащая: внутренний элемент переноса нагрузки, выполненный с возможностью прикрепления на одном конце к катушке поля, а на другом конце к внутренней поверхности вакуумного сосуда, содержащего катушку поля, и выполненный с возможностью поддержки катушки поля против электромагнитных сил, действующих на катушку поля; при этом по меньшей мере часть внутреннего элемента переноса нагрузки выполнена с возможностью оставаться при комнатной температуре во время работы катушки поля. 2. Опорная конструкция по п.1, содержащая внешний опорный элемент, выполненный с возможностью поддержки внутреннего опорного элемента, при этом внешний опорный элемент объединен с вакуумным сосудом или прикреплен к наружной поверхности вакуумного сосуда. 3. Опорная конструкция по п.1, причем внутренний элемент переноса нагрузки выполнен с возможностью прикрепления к верхней внутренней поверхности вакуумного сосуда и к верхней части катушки поля. 4. Опорная конструкция по п.1, причем внутренний элемент переноса нагрузки содержит слоистый материал, причем плоскость слоистого материала перпендикулярна Стр.: 1 A 2 0 1 8 1 1 1 8 0 4 (54) ОПОРНЫЕ КОНСТРУКЦИИ ДЛЯ ВТСП-МАГНИТОВ 2 0 1 8 1 1 1 8 0 4 GB 2016/052718 ...

Superconducting coil device and electric current introduction line

초전도코일의 전류도입라인에 대한 복사입열을 억제한다. 초전도코일장치(10)는, 진공용기(14)와 진공용기(14) 내에 배치되는 초전도코일(12)과, 진공용기(14) 내에서 초전도코일(12)을 둘러싸도록 배치되는 열실드(16)와, 초전도코일(12)에 전류를 도입하기 위한 전류도입라인(20)을 구비한다. 전류도입라인(20)은, 진공용기(14) 내에서 열실드(16)의 외측에 배치되고, 열실드(16)와 열적으로 결합되는 외측 전류리드부(26)와, 열실드(16)의 내측에 배치되며, 외측 전류리드부(26)를 초전도코일(12)에 접속하는 내측 전류리드부(28)를 구비한다. 외측 전류리드부(26)는, 초전도코일(12)에 대한 전류경로가 되는 본체와, 본체를 피복하는 절연층과 절연층을 피복하고, 복사율이 절연층보다 작은 차열층을 구비한다.

Superconducting joints

本发明涉及超导接头。一种冷却超导接头包括：接头杯体；在所述接头杯体中缠绕在一起的超导导线；以及与所述超导导线相接触的、填充所述接头杯体的超导材料。所处超导接头与承载制冷剂的管热且机械接触。所述管延伸到所述接头杯体中，并且在所述接头杯体内，所述超导材料环绕所述管延伸。在可替换的装置中，所述承载制冷剂的管可以被固态热导体替代。

Refrigeration system with a hot and a cold connection element and a heat pipe connected to the connecting elements

Die Kälteanlage (100) umfasst ein warmes und ein kaltes Verbindungselement (101, 103) und ein zwischen diesen Verbindungselementen (101, 103) angeordnetes Wärmerohr (105). Das Wärmerohr (105) soll zumindest teilweise mit einem Kältemittel (106) gefüllt sein, welches in dem Wärmerohr (105) nach einem Thermosiphoneffekt zirkulierbar ist. Mit dem warmen Verbindungselement (101) sind die zu kühlenden Teile (102) einer Einrichtung, insbesondere der Supraleitungstechnik, verbunden, mit dem kalten Verbindungselement (103) ist eine Wärmesenke (104) verbunden. Zur thermischen Trennung der Verbindungselemente (101, 103) ist das Kältemittel (106) über eine mit dem Innenraum des Wärmerohres (105) verbundene Rohrleitung (107) abpumpbar. The refrigeration system (100) comprises a hot and a cold connection element (101, 103) and a heat pipe (105) arranged between these connection elements (101, 103). The heat pipe (105) should at least partially be filled with a refrigerant (106), which is circulated in the heat pipe (105) according to a thermosiphon effect. The parts (102) to be cooled of a device, in particular of the superconducting technique, are connected to the hot connection element (101), and a heat sink (104) is connected to the cold connection element (103). For thermal separation of the connecting elements (101, 103), the refrigerant (106) can be pumped off via a pipe (107) connected to the interior of the heat pipe (105).

Low-stress safe transmission device between rapid excitation superconducting magnet and current lead

本发明公开了一种快速励磁超导磁体与电流引线间低应力安全传输装置，包括有右传输管道、波纹管、绝缘支撑片、左传输管道和载流线材；右传输管道、波纹管、左传输管道串联密封连接；绝缘支撑片安装固定在左传输管道和右传输管道内，载流线材通过绝缘支撑片固定在传输装置内；绝缘支撑片中心开孔，连接导通超导磁体和电流引线的载流线材穿透绝缘支撑片的中心孔，固定在传输装置内，载流线材自身带有绝缘层，同时绝缘支撑片起到二重绝缘；同时超导磁体运行时，绝缘支撑片产生应力应变，消除低温工况下载流线材受到的热应力和强磁场对其产生的电磁力，从而确保电流传输的安全性；绝缘支撑片边缘开孔，供冷却液氦循环通行。

Current lead for superconduction coil

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Superconductive magnet

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Super conductive current lead

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Current-feeding module to supply current to superconductive electric load at low critical temperature

Токопроводящий модуль размещен в криостате и прикреплен к герметизирующей крышке криостата и содержит пару металлических проводников, которые проходят через крышку, и нижние концы которых подсоединены к верхнему концу сверхпроводящего модуля с высокой критической температурой, содержащего два проводника, электрически соединенных с парой металлических проводников и разделенных изолирующим сердечником, обеспечивающим механическое упрочнение, причем пара металлических проводников окружена изолирующей конструкцией, верхний конец которой прикреплен к нижней части крышки криостата, уплотненная часть конструкции посредством соединения герметично соединена со сверхпроводящим модулем, при этом конструкция проходит неуплотненно по меньшей мере до нижнего конца сверхпроводящего модуля, а на нижнем конце конструкция содержит крепежное средство для опоры электрической нагрузки.

6kA high-temperature superconductive lead wires

本发明公开了一种6kA高温超导电流引线，包括有铜换热器段、高温超导段、电绝缘及密封结构、铜换热器段与高温超导段之间的第一连接结构、高温超导段与磁体之间的第二连接结构；所述铜换热器段冷端通过第一连接结构与高温超导段连接，高温超导段另一端通过第二连接结构与磁体连接，铜换热器段温端与铜管连接，铜管的另一端连接电流引线端子，电流引线端子的另一端连接氦气出气管；所述电绝缘及密封结构包括有电流引线法兰、绝缘环、O型密封圈。本发明能够用于为工作于低温下的超导磁体提供电能。本发明具有漏热小、接头电阻小、冷却结构简单、绝缘安全可靠等优点。

Cooling device for superconducting windings

The device is rotated around a horizontal axis 3. The superconducting windings 3 are contained in a cryogenic vessel 1 supplied with a forced flow of liquid helium 2b. The vessel is connected to an electric generator 4 by current leads 5a, 5b each incorporating a gas exchanger 6a or 6b and an evaporator-exchanger 7 placed between the cryogenic vessel 1 and the said gas exchangers 6a, 6b. The evaporator-exchanger 7 is intended to dissipate the heat arriving through the conducting leads 12 connected to the superconducting windings 3. The evaporator 7 consists of an annular pipe 11 with a horizontal axis in which the conducting leads 12 in the form of coaxial helices are at least partly steeped in liquid helium more or less in the same way. Application to a cyclotron for neutron therapy.

Supply link for superconductive coil.

Patent FR1564935A

Cooled current leads for cooled equipment

METHOD FOR COOLING A POWER SUPPLY FOR VERY LOW TEMPERATURE ELECTRICAL APPARATUS AND DEVICE FOR IMPLEMENTING SAME.

Superconductive coil of electromagnet

Metallic current supply for cryogenic system.

Amenée de courant métallique pour système cryogénique comprenant un conducteur dont une première extrémité est destinée à être connectée à un câble d'alimentation électrique (10) situé dans un premier milieu (11) à la température ambiante et dont une seconde extrémité est destinée à être connectée à une utilisation (14) située dans un second milieu (15) à 77 K, caractérisée par le fait que ledit conducteur a la forme d'un barreau métallique (1) dont la paroi latérale est isolée thermiquement et dont les faces extrêmes (12, 13) sont solidarisées respectivement à deux échangeurs thermiques métalliques (2, 8) l'un baignant dans ledit premier milieu et l'autre dans ledit second milieu. Metallic current lead for a cryogenic system comprising a conductor, a first end of which is intended to be connected to a power supply cable (10) located in a first medium (11) at ambient temperature and of which a second end is intended to be connected to a use (14) located in a second medium (15) at 77 K, characterized by the fact that said conductor has the shape of a metal bar (1) whose side wall is thermally insulated and whose end faces ( 12, 13) are respectively secured to two metal heat exchangers (2, 8), one bathing in said first medium and the other in said second medium.

Current supply device, in particular for equipment operating at low temperature

Division of current between different strands of a superconducting winding

A connection arrangement between superconducting strands of a winding (3a), supplied with alternating current, and its current connection via current leads (6, 7) in a cryotank, wherein the current leads inside the cryotank consist of mutually insulated sub-leads and wherein the sub-leads without intermediate insulation outside the cryotank are interconnected into a solid current lead and wherein the strands are connected directly to the ends of the sub-leads.

STRUCTURE FOR POWER SUPPLY FOR A SYSTEM OPERATING AT VERY LOW TEMPERATURE.

Structure pour amenée de courant destinée à une installation (101) fonctionnant à très basse température, comprenant une pièce allongée en céramique supraconductrice à haute température critique, dont les deux extrémités sont destinées à être respectivement au contact d'un premier milieu à ladite très basse température (110) et d'un second milieu à température intermédiaire (111), caractérisée par le fait que ladite pièce (40, 50, 60) est munie auxdites deux extrémités de deux bornes métalliques bonnes conductrices du courant et de la chaleur sur lesquelles sont fixés de façon étanche deux éléments d'enveloppe ayant de faibles conductivités thermique et électrique, susceptibles d'être raccordés de manière que soit ménagé un vide d'isolation (109) autour de ladite pièce supraconductrice. Structure for current supply intended for an installation (101) operating at very low temperature, comprising an elongated part in superconducting ceramic at high critical temperature, the two ends of which are intended to be respectively in contact with a first medium at said very low temperature (110) and a second medium at intermediate temperature (111), characterized in that said part (40, 50, 60) is provided at said two ends with two metal terminals which are good conductors of current and of heat on which two casing elements having low thermal and electrical conductivities, capable of being connected so that an insulating void (109) is formed around said superconducting part, are fixed in a sealed manner.

Patent FR1548640A

Terminal for connecting superconducting polyphase cables to electrical devices at room temperature

초전도 다상 케이블, 예를 들면, 초전도 3상 케이블을 실온 전기 장치에 접속시키기 위한 터미널을 개시한다. 터미널은 냉각 유체를 가진 케이싱을 구비하고, 상기 케이싱 내부에서는 3상 케이블 초전도체가 각각 말단이 케이싱의 외부에 실온의 장치 상에 접속되는 저항 도체와 접속된다. 상기 터미널은 세개의 중성 초전도체와 말단이 실온의 장치와 외부로 연결된 단일 저항 도체 사이에 초전도 접속 수단을 구비한다. 중성 초전도 접속 수단과 단일 도체를 가진 상기 수단의 접합 지역은 케이싱의 냉지역내에 배치된다.

Method for cooling a power supply line for electrical systems with very low temperatures and device for carrying out the method.

Superconductive device

Superconducting coil and superconducting magnet

코일부(10)는, 초전도선이 권회되는 것에 의해 형성되어 있다. 냉각 헤드(20)는 코일부(10)를 냉각하기 위한 것이다. 전열부(30)는 코일부(10) 및 냉각 헤드(20)를 서로 연결하고 있다. 전열부(30)는 제 1 전열판(31a) 및 제 2 전열판(31e)을 갖는다. 제 1 전열판(31a)은 코일부(10)에 제 1 위치에서 부착되어 있다. 제 2 전열판(31e)은 코일부(10)에, 제 1 위치로부터 떨어진 제 2 위치에서 부착되어 있다. 제 1 전열판(31a)은 제 2 전열판(31e)보다도 두껍다. 이에 의해, 냉각 헤드(20)의 고장을 방지하면서 코일부(10)의 냉각 효율을 높일 수 있다. The coil portion 10 is formed by winding a superconducting wire. The cooling head 20 is for cooling the coil portion 10. The heat transfer portion 30 connects the coil portion 10 and the cooling head 20 to each other. The heat transfer portion 30 has a first heat transfer plate 31a and a second heat transfer plate 31e. The first heat transfer plate 31a is attached to the coil portion 10 at a first position. The second heat transfer plate 31e is attached to the coil portion 10 at a second position away from the first position. The first heat transfer plate 31a is thicker than the second heat transfer plate 31e. Thereby, it is possible to increase the cooling efficiency of the coil portion 10 while preventing the cooling head 20 from failing.

Superconducting coil having a granular superconducting junction

A superconducting coil comprises a plurality of windings. Each winding comprises at least one superconducting segment having an exposed area containing a granular superconducting substance. A junction electrically connects at least one superconducting segment of one winding to at least one superconducting segment of another winding. The junction is formed by coupling the granular superconducting substance of the exposed area of the at least one superconducting segment of the one winding to the granular superconducting, substance of the exposed area of the at least one superconducting segment of the other winding. In an embodiment, the exposed areas are positioned to face each other.

Cryogenic vessel for a superconducting apparatus.

Three phase transformer type superconducting fault current limiter using double quench

Disclosed is a three phase transformer type superconducting fault current limiter using double quenches. A three phase transformer type superconducting fault current limiter using double quenches, applied to a three phase system to limit a fault current, comprises: a three phase transformer in which a primary side is connected to the three phase system and each of three system voltages inputted to the primary side is output to a secondary side; and a current controller provided in a form of wire-connecting end portions of the secondary side of the three phase transformer to each other and including a first superconducting element and a second superconducting element connected to the secondary side of the three phase transformer to limit the fault current using quench of the first superconducting element or the second superconducting element in the case that the fault current occurs at the three phase system.

Superconducting coil, superconducting magnet, and method for manufacturing superconducting coil

本发明涉及超导线圈、超导磁体和用于制造超导线圈的方法。在本发明中，内周部通过将第一和第二超导线材（11、12）中的一个缠绕而形成，该超导线材中的每一个具有带形状。外周部通过将所述第一和第二超导线材（11、12）中的另一个绕所述内周部缠绕而形成。焊接部（74）通过在所述内周部和所述外周部之间进行焊接而将所述第一和第二超导线材（11、12）连接到彼此。所述第一超导线材（11）的强度高于所述第二超导线材（12）的强度。所述第二超导线材（12）比所述第一超导线材（11）薄。

Connection bushing for superconducting coil

Superconductive device

Cylindrical Superconducting Magnet

High temperature superconducting current lead assembly for cryogenic apparatus

A method of manufacturing a lead assembly of a cryogenic system is provided. The method includes developing a three-dimensional (3D) model of a heat exchanger. The heat exchanger includes a plurality of channels extending longitudinally through the heat exchanger from the first end to the second end, the plurality of channels forming a plurality of thermal surfaces within the heat exchanger, the heat exchanger having a transverse cross section. The method further includes modifying the 3D model by at least one of reducing an area of the cross section and increasing the plurality of thermal surfaces. The method also includes additively manufacturing the heat exchanger using an electrically-conductive and thermally-conductive material according to the modified 3D model. Further, the method includes providing a high temperature superconductor (HTS) assembly that includes an HTS strip, and connecting the HTS assembly to the heat exchanger at the second end of the heat exchanger.

Conductor and coolant schemes for spiral-grooved, stacked plate, non-insulated superconducting magnets

Schemes are described for conductor and coolant placement in stacked-plate superconducting magnets, including arranging coolant channels and conducting channels within the plates on opposing faces. If the two types of channels are aligned with one another across the plate stacks, the plates may be stacked such that the cooling channel in one plate is adjacent to the conducting channel of the neighboring plate. By stacking a number of these plates, therefore, cooling may be supplied to each conducting channel through the cooling channels of each neighboring plate. Moreover, by aligning the two types of channels, the stacks of plates may have improved mechanical strength because mechanical load paths through the entire stack that do not pass through any of the channels may be created. This arrangement of channels may produce a very strong stack of plates that can withstand high Lorentz loads.

Superconducting quick switch

A magnet system for generating a magnetic field may include a superconducting magnet, a switch, and a heater element thermally coupled to the switch. The superconducting magnet is structured to generate magnetic fields, and the switch includes a non-inductive superconducting current carrying path connected in parallel to the superconducting magnet. In general, the switch is structured to only carry a level of current that is a portion of the current required to obtain a full field by the superconducting magnet.

Power supply for electrical equipment with conductors cooled to low temperatures

Superconducting current lead, superconducting current lead device, and superconducting magnet device

Interface device and junction box for a HTSC degaussing coil

A junction box (14) is provided which allows serial connection of the individual conductors (3) of at least one high temperature superconductor (HTS) wire bundle (2). The junction box includes an electrical interface device (3) disposed within a junction box housing. The interface device is configured receive both ends of each conductor of each HTS wire bundle, and to provide a superconductive electrical connection between respective first ends of conductors to respective second ends of other wire bundle conductors to form at least one superconductive multi-turn electromagnetic winding.

Shim lead power coupling assembly for superconducting magnet

A power coupling assembly for superconducting magnets includes a conduit with insulating tubes around each power lead, with the tubing passing through a plug at the upper end of the conduit and extending only part way to the lower end. Cryogen gas flowing from the magnet chamber into the conduit is forced to flow through the multiple tubes to cool the leads.

Large current lead wire for superconductive device

Current lead, superconducting system and method of manufacturing the current lead

本發明揭露一種用以減少於交流電環境中熱負荷轉移的電流導線、超導系統及製作此電流導線的方法。電流導線可能包括一導電材料，包括一配置，其中當一交流電應用到電流導線時，配置用以在電流導線中減少熱負荷轉移，其中溫度梯度沿著電流導線的長度展現。

feed module

The current feeder module (3) for the supply of a low-critical-temperature superconducting electrical load is placed in a cryostat (1), is fixed to its closure lid (2) and comprises a pair of metallic conductors (6, 7) passing through the lid (2) and connected at their lower end to the upper end of a high-critical-temperature superconducting module (8) comprising two conductors (9, 10) which are electrically connected to the said pair of metallic conductors (6, 7) and are separated by an insulating core (11) forming a mechanical reinforcement, an insulating structure (14), fixed by its upper end (15), under the said lid (2) of the cryostat (1), surrounding in a sealed manner the pair of metallic conductors (6, 7) as far as its junction (16) with the superconducting module (8), the structure (14) extending, in a non-sealed manner, as far as at least the lower end of the superconducting module (8), the structure (14) including, at its lower end, fixing means (20) for supporting the electrical load (4). <IMAGE>

Magnet coil system including HTSL tape conductor and LTS wire forming joint

Superconducting lead assembly for a cryocooler-cooled superconducting magnet

A superconducting magnet lead assembly for a cryocooler-cooled superconducting magnet having a design current of between generally 50 and 250 amperes. A DBCO (Dysprosium Barium Copper Oxide), YBCO (Yttrium Barium Copper Oxide), or BSCCO (Bismuth Strontium Calcium Copper Oxide) superconducting lead has its ends flexibly, dielectrically, and thermally connected, one end to the generally 30 to 50 Kelvin first stage and the other end to the generally 8 to 30 Kelvin second stage of the cryocooler coldhead. The superconducting lead has a generally constant cross-sectional area along its length. The design current, the lead's length, and the lead's cross-sectional area are chosen such that the design current times the lead's length divided by the lead's cross-sectional area is between generally 720 and 880 amperes per centimeter for a DBCO or YBCO lead and is between generally 180 and 220 amperes per centimeter for a BSCCO lead. The superconducting lead will not itself precipitate a magnet quench (i.e., the superconducting lead does not conduct significant heat between the coldhead stages during the superconductive mode), and the superconducting lead will survive a lead quench from other causes (i.e., the superconducting lead does conduct the resistive heat buildup to the coldhead stages during a lead quench) and thus be acceptable for commercial applications.

Contacting connection for use with superconducting transformer has mechanically fixed connection part designed to substantially fully enclose end of superconducting wire

The contacting connection (5,11) has a superconducting wire (3) whose end is electrically and mechanically connected to a normally conducting, mechanically fixed connection part (31). The connection part is designed so that the end of the superconducting wire is substantially fully enclosed by the connection part. The connection part has a normally conducting base part (18,24) with an aperture (19,27) into which the end of the superconducting wire is inserted.

Excitation winding of superconducting wind driven generator

本发明提出一种超导风力发电机的励磁绕组，该励磁绕组中内线圈与外线圈由不同临界电流值的超导材料制成，且内线圈的临界电流值大于外线圈；和/或内线圈和外线圈的宽度不同，且内线圈的宽度大于外线圈，充分利用超导材料的载流特性，大幅降低超导材料的用量，进而降低超导励磁绕组的成本。本发明的励磁绕组中内线圈与外线圈分别与一对电流引线单元连接，两线圈分别通过与对应一对电流引线单元的电连接实现分别励磁，实现了不同的励磁特性，增强励磁绕组调节的灵活性。

Connection system and method

A connection system 100 is disclosed, which includes a connector 102 electrically connected and fixedly secured to the gradient coil assembly 50 of a magnetic resonance imaging device 10, a cable block 106 fixedly secured to a magnet 54 of the MRI device 10 substantially above the connector 102, and a cable 108 having a first end electrically connected to the cable block 106 and a second end received by the connector 102 and forming an electrical connection between the connector 102 and the cable block 106. A method is disclosed for setting up the system by securing the cable block to an end face of the magnet 54, and wherein the cable has a plug for connection to the connector 102. A system is also disclosed wherein the connectors receptacle (104, figure 3) is oriented radially with respect to the patient-receiving bore 59 of the MRI device, and wherein a coaxial cable extends downwardly from the cable block 106, the cable having a plug that is received in the receptacle of the connector.

High current terminal leads for superconducting systems - have thermal insulating plate and leads cooled by nitrogen and helium vapour

A terminal connection arrangement is for supplying current to heavy current superconducting networks operating at 4 kelvins, such that heat is not conducted to the superconducting elements through the terminal leads in significant quantities. The unit consists basically of a plastics cylinder (5), mounted in a thermal insulating plate (1) inside which a set of hollow conductors takes the current from the input lead (4) to the supercooled conductor immersed in liquid helium (2). The conductors inside the terminal consist of a number of hollow pipes through which liquid nitrogen is pumped (3b to 3c), while outside this arrangement, but inside the surrounding cylinder (5) helium vapour is led from the supercooled region to an outlet (6a).

High temperature superconducting rotor power leads

The resistive power leads of a high temperature superconducting (HTS) rotor field coil are located in vacuum near the rotor axis and are cooled by thermal conduction to the return flow path (20) by bonding the leads to the tubing bulkhead (18) through ceramic insulators (22). The lead length, cross-section and electrical resistivity are optimized for minimum heat conduction and ohmic resistance heat transfer to the cold gas. Thermal expansion or contraction of the leads is accommodated by flexible sections at the warm and cold end of the leads.

Superconductive apparatus

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

High-voltage-resistant, vacuum proof electrical bushing for cryogenic applications, and a method for its production

The high-voltage resistant and vacuum proof electrical bushing for cryogenic applications contains an insulation body through which a plurality of conductor elements extend, as well as an annular, metallic flange. This bushing is intended to have high compression strength with a minimal leakage rate. To this end, the invention provides that the flange (20) is constructed on its inside to form a thin, tubular foot with foot parts (25, 26) projecting axially on both sides, that the insulation body (7) is a winding former around a central winding mandrel (3) into which the conductor elements (10, 11) which are at least partially in the form of strips or foils and the projecting foot parts (25, 26) of the flange (20) are also wound, that the glass fibre component of the insulation body (7) is selected such that, during cooling, its shrinkage is matched to that of the flange (20), and that the winding mandrel (3) consists of a material whose shrinkage is at most 5 times less than that of the insulation body (7). <IMAGE>

Cryogenic vessel for a superconducting apparatus

Clamping device for connecting two ends of wires of which at least one is a hard superconductor

Feed-through for electrical equipment operating in a cryogenic environment

Cryogenic assembly including carbon nanotube electrical interconnect

Electrical connection between two conductors, at least one of which is made of a hard superconducting material

Patent FR2170333A5

Superconduting coil device comprising coil winding and contacts

A superconducting coil device includes at least one coil winding, including at least one first and one second superconducting strip conductor, the first and second strip conductors each having a superconducting layer and a contact side provided with a contact layer; at least one first contact electrically connecting the contact side of the first strip conductor to an external circuit via a first contact piece; at least one second contact electrically connecting the contact side of the second strip conductor to the external circuit via a second contact piece; and a third contact electrically connecting the first and second strip conductors via the contact layer of the first and the second strip conductor within the coil winding, wherein the contact side of the first strip conductor has a different orientation relative to a center of the coil winding than the contact side of second strip conductor.

Cryogenic heat exchanger electrical lead

Granular superconducting joint

A superconducting joint that structurally binds a first superconducting segment to a second superconducting segment. The first and second superconducting segment each include corresponding areas containing a granular superconducting substance formed by a first element and a second element. The superconducting joint includes a solid non-superconducting binding formed from a source of the first element and a source of the second element combined to produce the granular superconducting substance around the solid non-superconducting binding to permit for the flow of superconducting current through the first superconducting segment and the second superconducting segment.

Superconducting coil device

It is desired to perform assemble, disassemble, maintenance and the like, especially of a large size superconducting coil device, in a short time. The superconducting coil device includes a plurality of coil units arranged in a circle circumference to form a toroidal shape. Each of the plurality of coil units includes a cryostat and a superconducting coil stored in the cryostat, and has a first surface parallel with a radius of the circle circumference and a second surface parallel with the radius of the circle circumference and arranged in a first direction side of the circle circumference to the first surface. The first surface contacts with the second surface of a coil unit adjacent in one direction among the plurality of coil units. The second surface contacts with the first surface of a coil unit adjacent in other direction among the plurality of coil units.

DEVICE FOR POWER SUPPLY FOR ELECTRICAL DEVICES WITH DEPTH TEMPERATURE COOLED CONDUCTORS.

Low-stress safe transmission device between rapid excitation superconducting magnet and current lead

本发明公开了一种快速励磁超导磁体与电流引线间低应力安全传输装置，包括有右传输管道、波纹管、绝缘支撑片、左传输管道和载流线材；右传输管道、波纹管、左传输管道串联密封连接；绝缘支撑片安装固定在左传输管道和右传输管道内，载流线材通过绝缘支撑片固定在传输装置内；绝缘支撑片中心开孔，连接导通超导磁体和电流引线的载流线材穿透绝缘支撑片的中心孔，固定在传输装置内，载流线材自身带有绝缘层，同时绝缘支撑片起到二重绝缘；同时超导磁体运行时，绝缘支撑片产生应力应变，消除低温工况下载流线材受到的热应力和强磁场对其产生的电磁力，从而确保电流传输的安全性；绝缘支撑片边缘开孔，供冷却液氦循环通行。

Current distribution between each strand of superconducting winding

High-temperature superconducting assembly with composite high-temperature superconducting current lead

本发明公开了一种具有复合型高温超导电流引线的高温超导组件，主要由Bi‑2223/Ag和ReBCO两种带材复合焊接于不锈钢分流器和两端铜头的槽中构成。本发明不仅增加了高温超导段温度裕度、保证了电流引线的失超安全运行时间、降低了冷端热负荷，并且与传统的Bi‑2223/AgAu高温超导电流引线相比大幅度降低了制造成本。该发明已成功通过了1000A电流引线高温超导组件的测试。实验结果表明，其结构牢靠，高温超导段温度梯度分布均匀，失冷安全时间大于10分钟，失超安全运行时间大于25秒，冷端漏热小于0.2W，高温超导接头电阻小于23nΩ，若应用于万安级电流引线中，接头电阻可小于3nΩ。