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1.发明公开公开(公告)号：US20240337805A1
公开(公告)日：2024-10-10
申请号：US18708165
申请日：2022-11-21
摘要： Systems and methods for performing optical annealing of an optical fiber disposed in a cryogenic environment subject to ionizing radiation, such as in a fusion energy source, are provided. The techniques include optically annealing the optical fiber using first light having a first peak wavelength and second light having a second peak wavelength different than the first peak wavelength. The first and second peak wavelengths may be selected to optically anneal defects associated with transient radiation-induced attenuation (RIA) and permanent RIA.
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公开(公告)号：US20240249866A1
公开(公告)日：2024-07-25
申请号：US18564086
申请日：2022-05-24
发明人： Yonghoon KIM , Hideki II , Takumi SATO
摘要： The superconducting rectangular wire for a superconducting coil, comprises: an NbTi-based or Nb3Sn-based wire having a surface coated with a copper-based material; and a fusible resin layer including a thermoplastic fusible resin and coating an outer peripheral surface of the wire, in which in a cross section of the superconducting rectangular wire for a superconducting coil, a radius of curvature (R2) of a corner portion of the fusible resin layer is equal to or less than a radius of curvature (R1) of a corner portion of the wire.
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公开(公告)号：US12034385B2
公开(公告)日：2024-07-09
申请号：US18111332
申请日：2023-02-17
发明人： Richard Adams
CPC分类号： H02N11/002 , F25B21/00 , H01F6/02 , H01F6/06 , H02K55/00
摘要： Various implementations of the invention correspond to an improved vortex flux generator. In some implementations of the invention, the improved vortex flux generator includes a magnetic circuit configured to produce a magnetic field; a quench controller configured to provide a variable current; a vortex material configured to form and subsequently dissipate a vortex in response to the variable current, wherein upon formation of the vortex, a magnetic field density surrounding the vortex is urged to decrease, and wherein upon subsequent dissipation of the vortex, the urging to decrease ceases and the magnetic field density increases prior to a reformation of the vortex, and wherein the decrease of the magnetic field density and the increase of the magnetic field density correspond to a modulation of the magnetic field; an inductor disposed in a vicinity of the vortex such that the modulation of the magnetic field induces an electrical current in the inductor; and a dissipation superconductor electrically disposed in parallel with the vortex material and configured to carry, without quenching, an entirety of the variable current during dissipation of the vortex in the vortex material.
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公开(公告)号：US20240116653A1
公开(公告)日：2024-04-11
申请号：US17992588
申请日：2022-11-22
摘要： Example coil guns and methods of using coil guns are described herein. An example coil gun includes a first pancake module; a second pancake module, where the first pancake module and the second pancake module are each formed of a winding with an inner superconducting material layer and an outer ordinary conductor layer, where the first pancake module and the second pancake module are physically and/or inductively coupled to propagate a quench of a superconducting state of the first pancake module to the second pancake module.
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公开(公告)号：US20230402213A1
公开(公告)日：2023-12-14
申请号：US18454225
申请日：2023-08-23
申请人： Tokamak Energy Ltd.
发明人： Robert Slade
摘要： 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.
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公开(公告)号：US20230324480A1
公开(公告)日：2023-10-12
申请号：US18328623
申请日：2023-06-02
发明人： Hitoshi KANAZAWA , Seiji NOZAKI , Takehiro SHIBUYA
IPC分类号： H01F6/04 , G01R33/3815 , H01F6/02 , G01R33/54 , G01R33/38
CPC分类号： G01R33/3815 , G01R33/3804 , G01R33/543 , H01F6/02 , H01F6/04
摘要： According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry is configured to calculate an allowable amount of heat input to a superconducting magnet, the allowable amount being allocated to each of a plurality of imagings scheduled during a target period. The processing circuitry is configured to determine an imaging condition based on the allowable amount in the each of the plurality of imagings.
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公开(公告)号：US20230208324A1
公开(公告)日：2023-06-29
申请号：US18111332
申请日：2023-02-17
发明人： Richard Adams
CPC分类号： H02N11/002 , H01F6/06 , F25B21/00 , H01F6/02 , H02K55/00
摘要： Various implementations of the invention correspond to an improved vortex flux generator. In some implementations of the invention, the improved vortex flux generator includes a magnetic circuit configured to produce a magnetic field; a quench controller configured to provide a variable current; a vortex material configured to form and subsequently dissipate a vortex in response to the variable current, wherein upon formation of the vortex, a magnetic field density surrounding the vortex is urged to decrease, and wherein upon subsequent dissipation of the vortex, the urging to decrease ceases and the magnetic field density increases prior to a reformation of the vortex, and wherein the decrease of the magnetic field density and the increase of the magnetic field density correspond to a modulation of the magnetic field; an inductor disposed in a vicinity of the vortex such that the modulation of the magnetic field induces an electrical current in the inductor; and a dissipation superconductor electrically disposed in parallel with the vortex material and configured to carry, without quenching, an entirety of the variable current during dissipation of the vortex in the vortex material.
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公开(公告)号：US20180350494A1
公开(公告)日：2018-12-06
申请号：US15780470
申请日：2016-09-01
发明人： Sadanori IWAI , Taizo TOSAKA , Hiroshi MIYAZAKI , Kenji TASAKI
摘要： A superconducting coil includes: a winding member 12 that has a side surface 18 along a coil radial direction and is formed by laminating a superconducting tape wire 20 in the coil radial direction by winding; and a bypass 19 that is provided on the side surface 18 of the winding member 12 and electrically connects the superconducting tape wire 20 in the coil radial direction.
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公开(公告)号：US20180233255A1
公开(公告)日：2018-08-16
申请号：US15899840
申请日：2018-02-20
发明人： Peter McIntyre , Akhdiyor Sattarov , Thomas Mann , James Gerity , Klaus Smit , Daniel Chavez , Nathaniel Pogue , Michael Tomsic
CPC分类号： H01B12/06 , H01F6/02 , H01L39/14 , H01L39/141 , H01L39/143 , Y02E40/642
摘要： Quench protected structured (QPS) superconducting cables, methods of fabricating the same, and methods of bending the same are disclosed. The methods of bending the QPS superconducting cables can be employed to produce windings. The QPS superconducting cables can rapidly drive a distributed quench to a normal conducting state in a superconducting cable if a region of the cable spontaneously quenches during high current operation.
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公开(公告)号：US09852831B2
公开(公告)日：2017-12-26
申请号：US15032766
申请日：2013-11-15
申请人： Hitachi, Ltd.
发明人： Akihisa Miyazoe , Takeshi Nakayama , Ryuya Ando , Manabu Aoki
摘要： 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.
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