Title :
Development of electropolishing technology for superconducting cavities
Author_Institution :
KEK, Ibaraki, Japan
Abstract :
In this paper, a brief review is given for electropolishing (EP) of niobium superconducting (sc) cavities. KEK original EP method is introduced. This method can produce high gradient of 40MV/m, which will be the fundamental limit of high pure niobium sc cavities. A required surface smoothness is estimated to be less than 2μm in order to prevent field enhancement problem in sc cavity.
Keywords :
accelerator RF systems; accelerator cavities; electrolytic polishing; niobium; surface roughness; type II superconductors; Nb superconducting cavities; electropolishing technology; high gradient; surface smoothness; Anodes; Current density; Hydrogen; Niobium; Radio frequency; Rough surfaces; Surface roughness; Surface treatment; Switches; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1288950
