# US 2022/0037069 A1 · High temperature superconducting magnet > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0037069 A1 - Document ID: US20220037069A1 - Status: Published application - Kind: A1 - Application number: 17/389,252 - Filed: 2021-07-29 - Published: 2022-02-03 - Earliest claimed: 2020-07-31 - Assignees: Fermi Research Alliance, LLC - Applicants: Fermi Research Alliance, LLC - Inventors: Vladimir Kashikhin - Web page: https://patentgrep.com/patent/US20220037069A1 ## CPC - H01F 6/06: Coils, e.g. winding, insulating, terminating or casing arrangements therefor - H01F 6/005: {Processes or means for increasing the stored energy in superconductive coils by increments} - H01F 41/048: {Superconductive coils} - H01F 6/04: Cooling - H05H 7/04: Magnet systems {, e.g. undulators, wigglers (free-electron laser H01S3/0903)}; Energisation thereof - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - H05H: PLASMA TECHNIQUE (apparatus or processes specially adapted for producing X-rays H05G2/00); PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS ## Abstract Systems and methods for superconducting magnets are disclosed, such systems and methods comprising a primary coil and short-circuited secondary coil. The secondary coil can be made from a stack of superconducting tapes having longitudinal cuts forming closed superconductor loops without splices. The primary coil is used to pump the current into the secondary coil where it circulates continuously generating a permanent magnetic field. ## Claims ### Claim 1 A system comprising: a first conductor configured in a strip with a longitudinal cut along a portion of the first conductor; at least one second conductor configured in a strip with a longitudinal cut along a portion of the at least one second conductor; wherein the first conductor and the at least one second conductor are arranged in a stack and a first end of the first conductor is shorted to a first end of the at least one second conductor and a second end of the first conductor is shorted to a second end of the at least one second conductor thereby forming a closed loop. ### Claim 2 (depends on 1) The system of claim 1 wherein the at least one second conductor comprises a plurality of conductors. ### Claim 3 (depends on 1) The system of claim 1 wherein the first conductor and the at least one second conductor comprise tape type conductors. ### Claim 4 (depends on 1) The system of claim 1 wherein the first conductor and the at least one second conductor comprise superconductors. ### Claim 5 (depends on 4) The system of claim 4 wherein the first conductor and the at least one second conductor comprise HTS tape type conductors. ### Claim 6 (depends on 1) The system of claim 1 wherein the longitudinal cut along the first conductor is configured to be a length of a half coil perimeter; and the longitudinal cut along the at least one second conductor is configured to a length of a half coil perimeter. ### Claim 7 (depends on 1) The system of claim 1 wherein the stack of the first conductor and the at least one second conductor is impregnated with epoxy. ### Claim 8 (depends on 1) The system of claim 1 further comprising: a ferromagnetic yoke wherein the closed loop is mounted in the ferromagnetic yoke. ### Claim 9 (depends on 1) The system of claim 1 further comprising: a primary conducting coil; and a support structure configured to mount the primary conducting coil and the closed loop. ### Claim 10 A method of manufacturing a magnet comprising: cutting a longitudinal slit in at least two conductors, wherein the longitudinal slit is formed along a portion of each of the at least two conductors, but does not extend to either end of the at least two conductors; assembling the at least two conductors into a stack of conductors; shorting a first end of the at least two conductors; shorting a second end of the at least two conductors; and forming a coil from the stack of conductors. ### Claim 11 (depends on 10) The method of manufacturing a magnet of claim 10 further comprising: forming a coil support structure. ### Claim 12 (depends on 10) The method of manufacturing a magnet of claim 10 wherein cutting a longitudinal slit in at least two conductors further comprises: selecting a cut length according to a desired half coil perimeter. ### Claim 13 (depends on 10) The method of manufacturing a magnet of claim 10 wherein shorting the first end of the at least two conductors comprises at least one of: soldering the first end together and sintering the first end together; and wherein shorting the second end of the at least two conductors comprises at least one of: soldering the first end together and sintering the first end together. ### Claim 14 (depends on 10) The method of manufacturing a magnet of claim 10 further comprising: wrapping a heater wire around the coil. ### Claim 15 (depends on 10) The method of manufacturing a magnet of claim 10 further comprising: wrapping a Rogowski coil around the coil. ### Claim 16 (depends on 10) The method of manufacturing a magnet of claim 10 further comprising: assembling a secondary coil configured as a magnetic field stabilization coil. ### Claim 17 A superconducting magnet system comprising: a first conductor configured in a strip with a longitudinal cut along a portion of the first conductor; at least one second conductor configured in a strip with a longitudinal cut along a portion of the at least one second conductor; wherein the first conductor and the at least one second conductor are arranged in a stack and a first end of the first conductor is shorted to a first end of the at least one second conductor and a second end of the first conductor is shorted to a second end of the at least one second conductor thereby forming a closed loop; a secondary coil; and a yoke configured in spaced relation with the stack of the first conductor and the second conductor. ### Claim 18 (depends on 17) The superconducting magnet system of claim 17 wherein the at least one second conductor comprises a plurality of conductors. ### Claim 19 (depends on 17) The superconducting magnet system of claim 17 wherein the first conductor and the at least one second conductor comprise tape type conductors. ### Claim 20 (depends on 17) The superconducting magnet system of claim 17 wherein the first conductor and the at least one second conductor comprise superconductors.