Preliminary Results from Multi-cell seamless niobium cavities fabricated by hydroforming

Conference · Wed Oct 01 04:00:00 EDT 2008

OSTI ID:956071

Singer, Xenia; Matheissen, Axel; Ciovati, Gianluigi; Morrone, Mike

The technology of forming multi-cell seamless niobium cavities has been developed at DESY within the European CARE (Coordinated Accelerator Research in Europe) program. Three-cell units have been manufactured successfully and a 9-cell cavity has recently been completed from three sub-sections and has been successfully tested at DESY. Additionally, we have equipped two 3-cell units one center unit of a 9-cell cavity and one end-unit with niobium beam pipes, have tuned these units and carried out cryogenic radio-frequency (RF) tests after standard BCP surface treatments had been applied to these cavities. In addition, we have taken temperature maps with JLab s two-cell thermometry system to compare with standard electron-beam welded cavities. This contribution will report about the preliminary cryogenic test results and the T-mapping this is an ongoing investigation.

• Research Organization: Thomas Jefferson Lab National Accelerator Facility
• Sponsoring Organization: USDOE
• OSTI ID: 956071
• Report Number(s): JLAB-ACC-08-891
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
CAVITIES
CRYOGENICS
EUROPE
NIOBIUM
SURFACE TREATMENTS