Title :
Superconducting Niobium Cavity Measurements at SLAC
Author :
Allen, M.A. ; Farkas, Z.D. ; Hogg, H.A. ; Hoyt, E.W. ; Wilson, P.B.
Author_Institution :
Stanford Linear Accelerator Center Stanford University, Stanford, California 94305
fDate :
6/1/1971 12:00:00 AM
Abstract :
The program of measurements at SLAC on superconducting niobium cavities is described. Results for TE and TM mode X-band cavities are presented. An RF magnetic breakdown field of 960 gauss and Q values greater than 1011 were measured for an electron beam welded TE011 mode cavity at 10.5 GHz. The best result for a TM mode cavity was a Q of 1.4 × 109 and a breakdown field of 360 gauss, limited probably by the quality of the electron beam weld. Data on the effect of exposure to air and to nitrogen are presented.
Keywords :
Electric breakdown; Electron beams; Gaussian processes; Magnetic field measurement; Niobium; Q measurement; Radio frequency; Superconducting magnets; Tellurium; Welding;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1971.4325998
