DocumentCode
3217653
Title
Effects of Electric and Magnetic Fields on the Performance of a Superconducting Cavity
Author
Ciovati, G. ; Kneisel, P. ; Sekutowicz, J. ; Singer, W.
Author_Institution
TJNAF, Newport News, VA, USA; gciovati@jlab.org
fYear
2005
fDate
16-20 May 2005
Firstpage
3874
Lastpage
3876
Abstract
A special two-cell cavity was designed to obtain surface field distributions suitable for investigation of electric and magnetic field effects on cavity performance. The cavity design and preliminary results were presented in a previous contribution. The bulk niobium cavity was heat-treated in a vacuum furnace at 1250 ° C to improve thermal conductivity. Three seamless hydroformed Nb/Cu cavities of the same design were fabricated to investigate the role of the electron beam welds located in high field areas. This paper will present RF test results at 2 K for the bulk niobium and one of the seamless cavities.
Keywords
Furnaces; Magnetic fields; Niobium; Q factor; Rough surfaces; Surface roughness; Temperature; Testing; Thermal conductivity; Welding;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN
0-7803-8859-3
Type
conf
DOI
10.1109/PAC.2005.1591653
Filename
1591653
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