The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Bennett:NAPAC2016-TUPOA54} \bibitem{Bennett:NAPAC2016-TUPOA54} L.C. Bennett, O.N. Vassiliev, \textquotedblleft{Examination of Out-of-Field Dose and Penumbral Width of Flattening Filter Free Beams in Medical Linear Accelerators}\textquotedblright, % in \emph{Proc. NAPAC2016}, pp. 396--398, % in \emph{Proc. NAPAC2016}, Chicago, IL, USA, Oct. 2016, paper TUPOA54, pp. 396--398, in \emph{Proc. North American Particle Accelerator Conf. (NAPAC'16)}, Chicago, IL, USA, Oct. 2016, paper TUPOA54, pp. 396--398, % ISBN: 978-3-95450-180-9, \url{https://jacow.org/napac2016/papers/tupoa54.pdf}, \url{https://doi.org/10.18429/JACoW-NAPAC2016-TUPOA54}, 2017.