Hydroforming SRF Three-cell Cavity from Seamless Niobium Tube
- KEK, Tsukuba
- Fermilab
- Los Alamos
We are developing the manufacturing method for superconducting radio frequency (SRF) cavities by using a hydroforming instead of using conventional electron beam welding. We expect higher reliability and reduced cost with hydroforming. For successful hydroforming, high-purity seamless niobium tubes with good formability as well as advancing the hydroforming technique are necessary. Using a seamless niobium tube from ATI Wah Chang, we were able to successfully hydroform a 1.3 GHz three-cell TESLA-like cavity and obtained an Eacc of 32 MV/m. A barrel polishing process was omitted after the hydroforming. The vertical test was carried out with very rough inside surface. We got amazing and interesting result.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1352048
- Report Number(s):
- FERMILAB-CONF-16-660-TD; 1470140
- Resource Relation:
- Conference: 7th International Particle Accelerator Conference, Busan, Korea, 05/08-05/13/2016
- Country of Publication:
- United States
- Language:
- English
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