First Nb₃Sn Coating and Cavity Performance Result at KEK

Authors :: Takahashi, Kotaro
Ito, Hayato
Kako, Eiji
Konomi, Taro
Okada, Takafumi
Sakai, Hiroshi
Umemori, Kensei
Publication Year :: 2022
Publisher :: JACoW Publishing, Geneva, Switzerland, 2022.
Abstract: At KEK, Nb₃Sn vapor diffusion R for High-Q has just started. We have performed Nb₃Sn coating on niobium samples and characterized these samples. We optimized the cavity coating parameter from the result of characterized samples. After optimizing the parameter, we have performed Nb₃Sn coating on a TESLA-like single-cell Nb cavity and measured cavity performance in vertical tests. This presentation presents the result of the cavity coating and performance results.<br />Proceedings of the 20th International Conference on RF Superconductivity, SRF2021, East Lansing, MI, USA