SUPERCONDUCTING Nb TM010 MODE ELECTRON-BEAM WELDED CAVITIES
- 1 May 1970
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 16 (9) , 333-335
- https://doi.org/10.1063/1.1653215
Abstract
Several superconducting TM010 mode Nb cavities at 8.6 GHz with high measured unloaded Q's and fields were made using commercial reactor‐grade Nb, practical fabrication techniques, and practical processing techniques. The cavities were fabricated by machining the cavities in two parts from a solid billet of Nb and then joining the two parts with electron‐beam welding. The cavities were processed primarily by using ultra‐high‐vacuum firing (1750–2100 °C) and chemical polishing. Unloaded Q's as high as 1011 were measured at low field levels, and surface fields as high as 1080 Oe and 70 MV/m were obtained with unloaded Q's on the order of 1010.Keywords
This publication has 4 references indexed in Scilit:
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