[WB5] Assembled Conductors

3:15 PM - 3:45 PM JST(6:15 AM - 6:45 AM UTC)

[WB5-02-INV] Experiments on using high-temperature superconducting STAR^® wires for accelerator magnets

Diego Arbelaez¹, Paolo Ferracin¹, Hugh C. Higley¹, Simone Johnson¹, Vadim Kashikhin⁴, Oliver Kiemschies⁴, Linqing Luo¹, Nghia Mai², Darryl Orris⁴, Soren O Prestemon¹, José Luis Rudeiros Fernández¹, Umesh Sambangi², Jithin sai Sandra², Venkat Selvamanickam³, Stoyan Stoynev⁴, Vikas Teotia⁵, Reed Teyber¹, *Xiaorong Wang¹, Shengchen Xue² (1. Lawrence Berkeley National Laboratory (United States of America), 2. AMPeers LLC (United States of America), 3. University of Houston (United States of America), 4. Fermi National Accelerator Laboratory (United States of America), 5. Brookhaven National Laboratory (United States of America))

Keywords:

REBCO,STAR wires,accelerator and fusion magnets

Future superconducting accelerator magnets will need high-temperature superconductors to surpass the magnetic field generated by today’s Nb₃Sn conductors. The high-temperature superconducting (HTS) REBa₂Cu₃O_7-x (REBCO, RE = rare earth) coated conductors can also enable magnet operation at temperatures above 4.2 K, which can improve cooling efficiency and hence the sustainability of future accelerator complexes. The HTS STAR^® round wire is an emerging conductor developed and commercialized by AMPeers LLC. The wire consists of multiple REBCO tapes wrapped around a metal core, with a diameter of a few mm and can be bent to a radius of 15 mm [1]. The U.S. Magnet Development Program, sponsored by the U.S. Department of Energy Office of High Energy Physics, is developing technologies for applications of the STAR^® wires in high-field accelerator magnets [2 – 4]. Here we will review the recent experimental results from the U.S. Magnet Development Program, including the test results of subscale dipole magnets, high-current cable developments and the feasibility study of using direct-wind technology for STAR^® wires [5 – 7]. We will also discuss directions for future work. Our results can help develop high-current cable conductors using STAR^® wires for future accelerator and fusion magnet applications.
Presentation Materials
https://iss-archives.jp/iss2025.jp/slides/WB5-02-INV.pdf