The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Zhou:SAP2017-TUDH2} \bibitem{Zhou:SAP2017-TUDH2} Z. Zhou, Y.-C. Du, W.-H. Huang, C.-X. Tang, and L.X. Yan, \textquotedblleft{Mega-electron-volt Ultrafast Electron Diffraction and Microscope at Tsinghua University}\textquotedblright, in \emph{Proc. SAP2017}, \url{https://doi.org/10.18429/JACoW-SAP2017-TUDH2}, 2018. % in \emph{Proc. SAP2017}, \url{https://doi.org/10.18429/JACoW-SAP2017-TUDH2}, pp. 134--137. % in \emph{Proc. SAP2017}, Jishou, China, Aug. 2017, paper TUDH2, \url{https://doi.org/10.18429/JACoW-SAP2017-TUDH2} % in \emph{Proc. 13th Symposium on Accelerator Physics (SAP'17)}, % Jishou, China, Aug. 2017, paper TUDH2, pp. 134--137, % ISBN: 978-3-95450-199-1, % \url{http://jacow.org/sap2017/papers/tudh2.pdf}, % \url{https://doi.org/10.18429/JACoW-SAP2017-TUDH2}, 2018.