The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Hosokai:IPAC2017-MOZB2} \bibitem{Hosokai:IPAC2017-MOZB2} T. Hosokai, \textquotedblleft{Stable Electron Beams by Laser Wakefield Acceleration (LWFA) and the ImPACT Program in Japan}\textquotedblright, % presented at IPAC2017, Copenhagen, Denmark, May 2017, paper MOZB2, unpublished. presented at the 8th Int. Particle Accelerator Conf. (IPAC'17), Copenhagen, Denmark, May 2017, paper MOZB2, unpublished.