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SC Strand and Cable R&D for Future Accelerators

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Camille M. Ginsburg
Updated by:
Camille M. Ginsburg
Document Created:
12 Feb 2008, 13:26
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12 Feb 2008, 13:26
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12 Feb 2008, 13:26
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An ongoing effort at FNAL and elsewhere focuses on the endeavor of making state-of-the-art magnets for present and future accelerators. The High Field Magnet and LARP Programs need high field dipoles and quadrupoles, and Muon Collider R&D requires very high field solenoids. In the last 10 years, within a Superconductor R&D program at TD, a large infrastructure, including two short sample test facilities, a cabling machine to fabricate Rutherford-type cables, and furnaces for heat treatment, was built upon this need with the mission to serve as an interface between materials and magnets. This superconductor R&D program encompasses the study of LTS beyond NbTi, and HTS materials. As a leading center for conductor technology, for LTS like brittle Nb3Sn and Nb3Al, our research and scientific studies have focused on the process of cable development because of the many different phenomena occurring in the round strand that can deeply modify their performance in magnets. For instance the Nb3Sn dipole magnet performance can be gravely compromised by flux jump instabilities, which we found to be inherent to high-Jc Nb3Sn conductors. For HTS solenoid applications, our program aims at monitoring state-of-the-art conductors, solving present challenges of tapes and wires, and developing appropriate cable and coil technologies. These studies, which are broad in spectrum and scope, will help us develop a most enriching vision for the future.
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