The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Sakai:SRF2015-THAA06} \bibitem{Sakai:SRF2015-THAA06} H.~Sakai, K.~Enami, T.~Furuya, M.~Satoh, M.~Sawamura, K.~Shinoe, and K.~Umemori, % H. Sakai \emph{et al.}, \textquotedblleft{Precise Studies on He-Processing and HPR for Recovery From Field Emission by Using X-Ray Mapping System}\textquotedblright, % in \emph{Proc. SRF2015}, THAA06, pp. 1019--1023, % in \emph{Proc. SRF2015}, Whistler, BC, Canada, 13-18, 2015, paper THAA06, pp. 1019--1023, in \emph{Proc. 17th International Conference on RF Superconductivity (SRF2015)}, Whistler, BC, Canada, 13-18, 2015, paper THAA06, pp. 1019--1023, ISBN: 978-3-95450-178-6, \url{http://srf2015.vrws.de/papers/thaa06.pdf}, \url{doi:10.18429/JACoW-SRF2015-THAA06}, 2015.