A cable-scale experiment to explore new materials for optimizing superconductor accelerator magnets
- The Ohio State Univ., Columbus, OH (United States)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
We discuss a previously commissioned system for exploring critical current pressure sensitivity in superconducting cables, the Transverse Pressure Insert, was modified to examine signals resulting from strand motion and insulation/impregnation cracking in a fully-excited Nb3Sn single strand embedded in an insulation wrapped and impregnated Cu dummy Rutherford cable stack. Measurements were performed in LHe with cyclic transverse pressures up to 68.5 MPa and transverse applied fields up to 13 T. Pressure was applied and removed to simulate stresses seen during magnet operation. Voltage and acoustic signal traces from a CTD-101 K impregnated cable stack were compared to those of a sample impregnated with NHMFL Mix–61. The experiments in this document were in the pursuit of developing a smaller scale, lower cost, and shorter turn around time experiment for exploring materials and processes to decrease training in next-generation Nb3Sn accelerator magnets.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1599624
- Report Number(s):
- FERMILAB-PUB-20-058-TD; oai:inspirehep.net:1777564; TRN: US2103490
- Journal Information:
- Cryogenics, Vol. 106, Issue C; ISSN 0011-2275
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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