The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Chu:IPAC2016-TUPOW019} \bibitem{Chu:IPAC2016-TUPOW019} Z. Chu, J.G. Guo, Q. Luo, and Z.R. Zhou, \textquotedblleft{Preliminary Concept of Fast Positron Source Based on Photo-injector}\textquotedblright, % in \emph{Proc. IPAC2016}, pp. 1785--1787, % in \emph{Proc. IPAC2016}, Busan, Korea, Mar. 2016, paper TUPOW019, pp. 1785--1787, in \emph{Proc. 7th International Particle Accelerator Conference (IPAC'16)}, Busan, Korea, Mar. 2016, paper TUPOW019, pp. 1785--1787, % ISBN: 978-3-95450-147-2, \url{http://jacow.org/ipac2016/papers/tupow019.pdf}, \url{doi:10.18429/JACoW-IPAC2016-TUPOW019}, 2016.