Abstract: A superconducting coil assembly. The assembly includes an insulating substrate, a plurality of insulating layers disposed in a stacked assembly on the substract, and a superconducting spiral pattern between the substrate and the adjacent insulating layer and between each adjacent pair of insulating layers. Superconducting connecting portions connect the spiral patterns to form a continuous thick film superconducting coil of right hand or left hand orientation. The spiral patterns and connecting portions are thick films of a high temperature ceramic superconducting material. A superconducting connecting link may interconnect the ends of the continuous coil to form a closed loop. The insulating layers and spiral patterns may be deposited successively over an insulating substrate. Alternatively, the insulating layers may be annular disks with vias therethrough for connecting the spiral patterns.

Abstract: A superconducting magnetic energy storage unit is provided in which the magnet is wound in a toroidal fashion such that the magnetic field produced is contained only within the bore of the magnet, and thus producing a very low external field. The superconducting magnet includes a coolant channel disposed through the wire. The bore of the magnet comprises a storage volume in which cryogenic coolant is stored, and this volume supplies the coolant to be delivered to the coolant channel in the magnet.

Abstract: The coil of a solenoid has a pair of cylindrical, superconductive bands ped coaxially about its exterior. The bands are mounted for movement axially along the outer surface of the coil. The bands are used to shape and redirect the flux lines of the solenoid. The bands are placed near the midpoint of the coil. Sufficient current is applied to the coil to immerse the bands in a field greater than the critical field Hc, thereby switching off the superconductive state of the bands and causing flux lines from the coil to intersect the bands. Next, the field is reduced below the critical field Hc, switching on the superconductive state of the bands. The bands are then moved to the ends of the coil, reshaping the field of the solenoid into a more uniform configuration as they move. In an alternate embodiment, the superconductive state of the bands is switched on by lowering their temperature below the critical temperature while the coil is producing its desired or working field.

Abstract: A novel construction of a superconductive coil system, having sufficient coupling strength and stiffness and being easy to assemble, is disclosed. A coil retainer of a stiffened cylindrical shell is divided into two parts for receiving coils and spacers. The inner circumference sides of the adjoining portions of the two parts form a dividing surface consisting of a plane extending longitudinally and are coupled with bolts having their axes directed in the circumferential direction. The outer circumference sides of the same adjoining portions form comb teeth meshed with each other and keyways extending longitudinally along the outer surface of the same comb teeth, and are coupled by keys inserted into the keyways and having their axes directed in the longitudinal direction.

Abstract: In a superconductive coil assembly, superconductive wires are extended in a sheath tube which also defines a passage for allowing a liquid helium to pass therethrough. Sheath tube is housed in reinforcing vessel which comprises a pair of vessel segments and welded to each other. Reinforcing vessel is enclosed by a turn insulation and a earth insulation.

Abstract: A superconductive magnet having at least one superconductive coil is provided. A thermal radiation shield is situated inside a vacuum vessel and the thermal radiation shield encloses the superconductive coil. A thermal diode is provided for thermally linking the superconductive coil and the thermal radiation shield when the thermal radiation shield is colder than the superconductive coil.

Abstract: An automated facility for the large-scale production of superconducting magnets for use in a particle accelerator. Components of the automated facility include: a superconducting coil winding machine; a coil form and cure press apparatus; a coil collaring press; collar pack assembly apparatus; yoke half stacking apparatus; a cold mass assembly station; and a final assembly station. The facility can produce, on an economical manufacturing basis, magnets made of superconducting material for use in the ring of the particle accelerator. Each of the components is under the control of a programmable controller for operation having repeatable accuracy. All of the elements which are combined to form the superconducting magnet are thus manufactured with the dimensional precision required to produce a known, uniform magnetic field within the accelerator.

Abstract: Outside of its interior space, a Dewar vessel contains a high-frequency screening device around the superconducting parts of the measuring device. At the same time, the high-frequency screening device is designed as a thermal radiation shield, whereby its surfaces surrounding the superconducting parts are retained at a temperature level which lies between the low temperature of a cryogenic fluid and the outside temperature of the vessel. To suppress eddy currents, the surfaces of the screening device can be advantageously resolved, at least in the area of these superconducting parts, into individual, electrically conductive tracks, which are electrically insulated from each other.

Abstract: An actively shielded refrigerated superconductive magnet is provided. The magnet includes a generally cylindrical vacuum vessel having an axially extending bore. A plurality of superconductive main coils are positioned in the vacuum vessel concentrically surrounding and spaced away from the bore. A pair of superconductive shield coils having a larger diameter than the superconductive main coils are situated in the vacuum vessel, concentric with the superconductive main coils. The superconductive shield coils are situated at either end of the superconductive main coils. The superconductive shield coils and the superconductive main coils are electrically connected to one another so that the superconductive shield coils and the superconductive main coils are capable of carrying current in opposite circumferential directions. A thermal shield encloses the superconductive main and shield coils, with the thermal shield spaced away from the vacuum vessel and superconductive main and shield coils.

Abstract: A pipe comprises a hollow support member made from a member selected from copper and copper compounds and a copper oxide superconducting ceramic material which covers the inner surface of the support member with a space kept in the pipe for use in a magnet or power accumulator device.

Abstract: A spacer bar, or system of spacer bars, interposed between coil layers of a coil structure. The spacer bar comprises a block of electrical insulating material adapted to be arranged between adjacent layers of a coil. The spacer bar may comprise several spacer bar sections segmented axially and provided with flexible joints (e.g., Belleville washers) between sections to permit each section to move with the adjacent coil layers (the coil layers between which the section is interposed). The sections of the spacer bar are held together by passing a rod through holes provided through each section. Between each pair of spacer sections, a Belleville washer is installed to assure that under continued cycling (e.g., expansion and contraction of the coil), the spacer sections return to their original location. To maintain an adequate creep path at the ends of the blocks or sections, notches can be cut into a face of each block or section.

Abstract: An actively shielded, superconducting magnet of a nuclear magnetic resonance tomography apparatus has an inner coil system and an outer coil system connected in series to avoid an increase in the external field upon the quench of one of the coil systems. To avoid losing the protection of the shielding effect from external magnetic field disturbances, a superconducting current limiter having a low critical current-carrying capability is connected in the coil system to guide a difference current between the inner coil system and the outer coil system. To avoid an unwanted increase in the external field in the event of a quench of one of the coil systems, the current limiter becomes normally conductive in the presence of a current difference larger than a prescribed value.

Abstract: A ferrite device has a closed superconductor which encircles a ferrite element. The closed superconductor continuously circulates a current to produce a magnetic field for biasing the ferrite element.

Abstract: A synchrotron having at least two sets of super-conducting coils, each arranged for deflecting charged particles in a curved path. The sets of superconducting coils are spaced to provide at least one straight portion of the path for the particles. A transformer device is located along the straight portion of the path for accelerating the particles to operating energy. At least one coil has its main go and return arms curved to lie substantially parallel to the required curved path and at least one coil has only its main go arm curved to lie substantially parallel to the path.

Abstract: A magnetic motion electrical generator includes an electrical winding defining a magnetically conductive zone having bases at each end, the winding including elements for the removing of an induced current therefrom. The generator further includes two pole magnets, each having a first and a second pole, each first pole in magnetic communication with one base of the magnetically conductive zone. The generator further includes a third pole magnet, the third pole magnet oriented intermediately of the first poles of the two pole electromagnets and in magnetic communication with the electromagnets, the third pole magnet having a magnetic axis substantially transverse to an axis of the magnetically conductive zone, the third magnet having a pole nearest to the conductive zone and in magnetic attractive relationship to the first poles of the two pole electromagnets, in which the first poles thereof are like poles.