%info@http:://golem.fjfi.cvut.cz/wiki/root/GW4reports
\def\GWslide{\slide{Ball pen probe}{
\begin{columns}[c]
\column{0.5\tw}
\GWig{width=0.95\tw}{Diagnostics/ParticleFlux/BallPenProbe/Setup/Ball-pen_probe_schematic.png}
\column{0.5\tw}
\GWig{width=0.95\tw}{Diagnostics/ParticleFlux/BallPenProbe/Photogallery/1216/2016-12-22@11-38-44.jpg}
\end{columns}
}}