Granted Patent B2

US 12,658,342 · App. 17/908,331 · Granted Jun 16, 2026

Inventors: Alexey Radovinsky (Cambridge, MA); Charlie Sanabria (Shirley, MA); Christopher Craighill (Cambridge, MA); Krishna Kiran Kumar Uppalapati (North Billerica, MA); Alexander Creely (Boston, MA); Daniel Brunner (Cambridge, MA)

Assignees: Massachusetts Institute of Technology; Commonwealth Fusion Systems LLC

H01B12/02H01B1/026H01B1/08H01B12/14H01F6/06

Abstract

Claims (32)

1 . A magnet comprising:

a coil comprising a plurality of windings of a cable, the cable comprising:

a plurality of high temperature superconductor (HTS) components;

a plurality of electrically conductive segments extending along a length of the cable, individual electrically conductive segments of the plurality of electrically conductive segments including at least one of the plurality of HTS components; and

an electrically insulating material arranged between adjacent electrically conductive segments of the plurality of electrically conductive segments that electrically insulate the plurality of electrically conductive segments from one another, wherein the insulating material extends from an exterior surface of the adjacent electrically conductive segments to a central longitudinal axis of the cable.

2 . The magnet of claim 1 , wherein none of the plurality of electrically conductive segments directly contact any of the other electrically conductive segments.

3 . The magnet of claim 1 , wherein the HTS components comprise HTS tape.

4 . The magnet of claim 3 , wherein the HTS components comprise a stack of HTS tapes.

5 . The magnet of claim 1 , wherein the plurality of electrically conductive segments exhibit radial symmetry around the central longitudinal axis of the cable.

6 . The magnet of claim 5 , wherein the plurality of electrically conductive segments are twisted around the central longitudinal axis of the cable, and wherein the plurality of HTS components follow a helical path around the central longitudinal axis.

7 . A magnet comprising:

a coil comprising a plurality of windings of a cable, the cable comprising:

a plurality of high temperature superconductor (HTS) components;

a plurality of electrically conductive segments extending along a length of the cable, individual electrically conductive segments of the plurality of electrically conductive segments including a groove in which at least one of the plurality of HTS components is arranged; and

an electrically insulating material arranged between adjacent electrically conductive segments of the plurality of electrically conductive segments that electrically insulates the plurality of electrically conductive segments from one another,

wherein the insulating material extends from an exterior surface of the adjacent electrically conductive segments to a central longitudinal axis of the cable.

8 . The magnet of claim 7 , wherein none of the plurality of electrically conductive segments directly contact any of the other electrically conductive segments.

9 . The magnet of claim 7 , wherein the HTS components comprise HTS tape.

10 . The magnet of claim 9 , wherein the HTS components comprise a stack of HTS tapes.

11 . The magnet of claim 7 , wherein the plurality of electrically conductive segments exhibit radial symmetry around the central longitudinal axis of the cable.

12 . The magnet of claim 11 , wherein the plurality of electrically conductive segments are twisted around the central longitudinal axis of the cable, and wherein the plurality of HTS components follow a helical path around the central longitudinal axis.

13 . A magnet comprising:

a coil comprising a plurality of windings of a cable, the cable comprising:

a plurality of high temperature superconductor (HTS) components;

a plurality of electrically conductive segments extending along a length of the cable, individual electrically conductive segments of the plurality of electrically conductive segments including at least one of the plurality of HTS components;

an interior cooling channel adjacent to each of the plurality of electrically conductive segments; and

an electrically insulating material arranged between adjacent electrically conductive segments of the plurality of electrically conductive segments that electrically insulate the plurality of electrically conductive segments from one another, wherein the insulating material extends from an exterior surface of the adjacent electrically conductive segments to the interior cooling channel.

14 . The magnet of claim 13 , wherein none of the plurality of electrically conductive segments directly contact any of the other electrically conductive segments.

15 . The magnet of claim 13 , wherein the HTS components comprise HTS tape.

16 . The magnet of claim 15 , wherein the HTS components comprise a stack of HTS tapes.

17 . The magnet of claim 13 , wherein the plurality of electrically conductive segments exhibit radial symmetry around a central axis of the cable.

18 . The magnet of claim 17 , wherein the plurality of electrically conductive segments are twisted around the central axis of the cable, and wherein the plurality of HTS components follow a helical path around the central axis.

Assignments (3)

Continuity (2)

References Cited (104)