Experiences in Large Grain-Single Crystal Cavity Fabrication

Journal Article · Thu Aug 09 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2770687· OSTI ID:21067374

Pekeler, Michael; Schwellenbach, Johannes; Tradt, Marco ^[1]

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1. ACCEL Instruments GmbH, Friedrich-Ebert-Str. 1, D-51429 Bergisch Gladbach (Germany)

At ACCEL instruments several single cell and 9-cell cavities have been produced out of large grain niobium sheets from different suppliers. The fabrication experience and difference to the production out of fine grain niobium sheets will be described. In addition two cavities were produced using single crystal niobium sheets. The final cavities showed no grain boundaries at all in the cavity cell, even not in the electron beam welding seam.

• OSTI ID: 21067374
• Journal Information: AIP Conference Proceedings, Vol. 927, Issue 1; Conference: International niobium workshop on single crystal - large grain niobium technology, Araxa (Brazil), 30 Oct - 1 Nov 2006; Other Information: DOI: 10.1063/1.2770687; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CAVITY RESONATORS
ELECTRON BEAM WELDING
GRAIN BOUNDARIES
GRAIN SIZE
MONOCRYSTALS
NIOBIUM
SHEETS
SUPERCONDUCTORS