The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Mei:SAP2017-TUPH18} \bibitem{Mei:SAP2017-TUPH18} Z.Y. Mei, K. Fan, L.X.F. Li, Z.J. Zeng, and L.G. Zhang, \textquotedblleft{Internal PIG Source Design for a Superconducting Cyclotron in the HUST Proton Therapy Facility}\textquotedblright, presented at SAP2017, Jishou, China, Aug. 2017, paper TUPH18, unpublished. % presented at the 13th Symposium on Accelerator Physics (SAP'17), Jishou, China, Aug. 2017, paper TUPH18, unpublished.