%\cite{Damminsek:FEL2015-MOP025} \bibitem{Damminsek:FEL2015-MOP025} K.~Damminsek, H.~Ohgaki, S.~Rimjaem, S.~Suphakul, C.~Thongbai, and H.~Zen, \textquotedblleft{Electron Beam Properties from a Compact Seeded Terahertz FEL Amplifier at Kyoto University}\textquotedblright, % in \emph{Proc. FEL2015}, MOP025, pp. 85--88, % in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper MOP025, pp. 85--88, in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper MOP025, pp. 85--88, ISBN: 978-3-95450-134-2, \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop025.pdf}, doi:10.18429/JACoW-FEL2015-MOP025, 2015.