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HIGH PERFORMANCE SRF ACCELERATOR STRUCTURE AND METHOD

United States Patent Application

20170215268
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A high performance accelerator structure and method of production. The method includes precision machining the inner surfaces of a pair of half-cells that are maintained in an inert atmosphere and at a temperature of 100 K or less. The method includes removing thin layers of the inner surfaces of the half-cells after which the roughness of the inner surfaces in measured with a profilimeter. Additional thin layers are removed until the inner surfaces of the half-cell measure less than 2 nm root mean square (RMS) roughness over a 1 mm.sup.2 area on the profilimeter. The two half-cells are welded together in an inert atmosphere to form an SRF cavity. The resultant SRF cavity includes a high accelerating gradient (E.sub.acc) and a high quality factor (Q.sub.0).
Myneni, Ganapati Rao (Yorktown, VA)
15/ 411,986
January 21, 2017
GOVERNMENT LICENSE RIGHTS STATEMENT [0002] The United States Government may have certain rights to this invention under Management and Operating Contract No. DE-AC05-060R23177 from the Department of Energy.