公开(公告)号：WO2021252765A1

公开(公告)日：2021-12-16

申请号：PCT/US2021/036814

申请日：2021-06-10

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： GARNIER, Darren, T. ,  GRANETZ, Robert, S. ,  SWEENEY, Ryan, M.

IPC: G21B1/05 ,  G21B1/11 ,  H01F5/00 ,  G21B1/057 ,  H01F7/202

Abstract: Described are concepts, structures and techniques for passive mitigation of relativistic electrons produced in a tokamak plasma. These electrons may be referred to herein as "runaway" electrons (REs). In embodiments, a passive runaway electron mitigation coil (REMC) comprises an electrical conductor having a non-axisymmetric loop shape comprising a plurality of portions arranged along paths defined by the surface of a torus along a toroidal direction. In operation, the REMC is energized by a disruption-induced voltage, and the resulting magnetic field stochasticity causes electrons to be lost more rapidly than a RE beam can form. The REMC is configured for outboard side mounting within a vacuum vessel.

公开(公告)号：WO2021122623A1

公开(公告)日：2021-06-24

申请号：PCT/EP2020/086259

申请日：2020-12-15

Applicant: TOKAMAK ENERGY LTD

Inventor： ASTBURY, Jack ,  DAVIS, Thomas ,  MIDDLEBURGH, Simon

IPC: G21F1/08 ,  G21F1/12 ,  G21B1/11 ,  G21B1/05 ,  H01F6/06 ,  G21B1/057 ,  G21F1/125 ,  H01F27/363

Abstract: Neutron shielding. The neutron shielding comprises a plurality of absorption layers (201, 203), and at least one moderating layer (202). The plurality of absorption layers each comprise tungsten boride or tungsten carbide. The at least one moderating layer comprises a metal hydride. Each moderating layer is between at least two absorption layers.

公开(公告)号：WO2021257145A2

公开(公告)日：2021-12-23

申请号：PCT/US2021/024151

申请日：2021-03-25

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： LABOMBARD, Brian ,  BECK, William ,  MOURATIDIS, Theodore

IPC: H01F6/06 ,  G21B1/05 ,  G21B1/057 ,  H01F6/065

Abstract: Described are concepts directed toward systems, structures and techniques to create low-resistance, high current capacity, demountable solder joint connections. Such systems, structures and techniques may be used to simultaneously create low-resistance, high current capacity, demountable solder joint connections at multiple locations between no insulation (NI) superconductors and in particular between NI high temperature superconductors (HTS) such as may be used in NI-HTS magnets.

公开(公告)号：WO2022084398A2

公开(公告)日：2022-04-28

申请号：PCT/EP2021/079107

申请日：2021-10-20

Applicant: TOKAMAK ENERGY LTD

Inventor： SLADE, Robert ,  BATEMAN, Rod ,  VAN NUGTEREN, Jeroen

IPC: H01F6/02 ,  G21B1/05 ,  H01F6/06 ,  H01F27/32 ,  H02H7/00 ,  G21B1/057 ,  H01B12/00 ,  H01F2027/329 ,  H01F27/323 ,  H02H7/001

Abstract: A high temperature superconductor, HTS, field coil having turns comprising HTS material wound about an axis of the coil. The turns are separated from one another along a direction perpendicular to the axis by a layer of insulator material having a first resistivity at a temperature less than a generation temperature of the HTS material and a lower, second resistivity at a second temperature greater than the generation temperature of the HTS material. The HTS field coil further comprises one or more electrical conductor elements arranged to provide one or more electrically conductive pathways extending from one turn to an adjacent turn and through the layer of insulator material. In response to a voltage difference generated across the one or more electrically conductive pathways, electrical current is driven through the one or more electrical conductor elements to heat the layer of insulator material.

公开(公告)号：WO2021122588A1

公开(公告)日：2021-06-24

申请号：PCT/EP2020/086207

申请日：2020-12-15

Applicant: TOKAMAK ENERGY LTD

Inventor： BUXTON, Peter

IPC: G21B1/05 ,  H01F6/06 ,  G21B1/057

Abstract: A tokamak comprising a vacuum chamber, a toroidal field coil, and a solenoid. The solenoid is wound around the toroidal field coil within a central column region of the tokamak. The solenoid comprises an inner portion and two outer portions. The inner portion comprises windings extending axially for a first distance either side of the midpoint of the length of the solenoid. The outer portions, each comprise windings extending axially from an end of the inner portion. The inner portion has a number of turns per unit length which is greater than a number of turns per unit length of the outer portion.