Nb3Sn Superconducting RF Cavities: R&D Progress at Fermilab and Opportunities
Nb3Sn becomes superconducting at twice as high temperature as our standard SRF material niobium. This allows us to efficiently operate Nb3Sn cavities at 4.4 K instead of the usual 2 K. This reduces cryogenic costs and even makes it possible to use a cryocooler instead of a large, complex cryogenic plant. The superheating field Hsh of Nb3Sn is twice that of niobium. Hsh is thought to be the ultimate limit for a defect-free superconductor. Nb3Sn cavities being made today are still about a factor of 4 away from this ultimate limit, but R&D has been leading to substantial progress towards this goal.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1596022
- Report Number(s):
- FERMILAB-POSTER-20-034-TD; oai:inspirehep.net:1777866; TRN: US2102624
- Country of Publication:
- United States
- Language:
- English
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