Publications
Publication Information
| Title | A MULTI-LAYERED SRF CAVITY FOR CONDUCTION COOLING AP-PLICATIONS | ||
| Authors | Gianluigi Ciovati, Guangfeng Cheng, Edward Daly, Grigory Eremeev, James Henry, Robert Rimmer, Uttar Pudasaini | ||
| JLAB number | JLAB-ACC-19-2980 | ||
| LANL number | (None) | ||
| Other number | DOE/OR/23177-4722 | ||
| Document Type(s) | (Meeting) | ||
| Associated with EIC: | No | ||
| Supported by Jefferson Lab LDRD Funding: | No | ||
| Funding Source: | Nuclear Physics (NP) | ||
| Other Funding: | PECASE | ||
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Meeting Paper compiled for SRF 2019 (19th International Conference on RF Superconductivity) Proceedings Proceedings of SRF 2019 Edited By Peter Michel, André Arnold, Volker RW Schaa JACOW (2019) Page(s) 538 | |||
| Publication Abstract: | Industrial application of SRF technology would favor the use of cryocoolers to conductively cool SRF cavities for particle accelerators, operating at or above 4.3 K. In order to achieve a lower surface resistance than Nb at 4.3 K, a superconductor with higher critical temperature should be used, whereas a metal with higher thermal conductivity than Nb should be used to conduct the heat to the cryocoolers. A standard 1.5 GHz bulk Nb single-cell cavity has been coated with a ~2 ?m thick layer of Nb3Sn on the inner surface and with a 5 mm thick Cu layer on the outer surface for conduction cooled applica-tions. The cavity performance has been measured at 4.3 K and 2.0 K in liquid He. The cavity reached a peak surface magnetic field of ~40 mT with a quality factor of 6×109 and 3.5×109 at 4.3 K, before and after applying the thick Cu layer, respectively. | ||
| Experiment Numbers: | other | ||
| Group: | SRF Research & Dev | ||
| Document: | |||
| DOI: | https://doi.org/10.18429/JACoW-SRF2019-TUP050 | ||
| Accepted Manuscript: | tup050.pdf | ||
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