%\cite{Spampinati:FEL2015-MOP044} \bibitem{Spampinati:FEL2015-MOP044} S.~Spampinati, B.D.~Muratori, N.~Thompson, and P.H.~Williams, \textquotedblleft{A Laser Heater for CLARA}\textquotedblright, % in \emph{Proc. FEL2015}, MOP044, pp. 129--132, % in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper MOP044, pp. 129--132, in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper MOP044, pp. 129--132, ISBN: 978-3-95450-134-2, \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop044.pdf}, doi:10.18429/JACoW-FEL2015-MOP044, 2015.