Investigation of Electropolishing for High-Gradient 1.3 GHz and 3.9 GHz Niobium Cavities
Yue Zong,
Jinfang Chen,
Dong Wang
et al.
Abstract:Electropolishing (EP) has become a standard procedure for treating the inner surfaces of superconducting radio-frequency (SRF) cavities composed of pure niobium. In this study, a new EP facility was employed for the surface treatment of both 1.3 GHz and 3.9 GHz single-cell cavities at the Wuxi Platform. The stable “cold EP” mode was successfully implemented on this newly designed EP facility. By integrating the cold EP process with a two-step baking approach, a maximum accelerating gradient exceeding 40 MV/m w… Show more
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