The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Pitman:IPAC2017-THPVA135} \bibitem{Pitman:IPAC2017-THPVA135} S. Pitman, R. Apsimon, G. Burt, A.F. Green, A. Grudiev, H.L. Owen, \emph{et al.}, % S. Pitman, R. Apsimon, G. Burt, A.F. Green, A. Grudiev, H.L. Owen, A. Solodko, and W. Wuensch, % S. Pitman \emph{et al.}, \textquotedblleft{ProBE: Proton Boosting Extension for Imaging and Therapy}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 4776--4779, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper THPVA135, pp. 4776--4779, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper THPVA135, pp. 4776--4779, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/thpva135.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-THPVA135}, 2017.