%info@http:://golem.fjfi.cvut.cz/wiki/root/GW4reports \def\figpath{Experiments/IzotopicStudies/Slides/GoshaHydrogenHeliumMainResult} \def\GWslideSetup{\slide{Hydrogen and Helium Plasmas in the GOLEM Tokamak}{ \def\lngth{0.33\tw} \begin{center} \begin{columns}[c] \column{\lngth} \GWig{width=\tw}{\figpath/expsetup.png} Experimental set-up \column{\lngth} \GWig{width=\tw}{\figpath/MirnovCoils.png} Mirnov coils to measure MHD activity \column{\lngth} \GWig{width=\tw}{\figpath/ExpSetup-BPP.png} Ball-pen probe \end{columns} \end{center} }} \def\GWslideResult{\slide{H and He Plasmas in the GOLEM Tokamak: results}{ \def\lngth{0.5\tw} \begin{center} \begin{columns}[c] \column{\lngth} \GWig{width=\tw}{\figpath/Hydrogen.png} \column{\lngth} \GWig{width=\tw}{\figpath/Helium.png} \end{columns} \end{center} \begin{itemize} \item Plasma scenarios in H and in He in the GOLEM are radically different. \item In hydrogen plasma magnetic instabilities usually occur near the maximum plasma current, that lead to the disruption. \item Helium plasma quietly extinguishes due to the exhaust of the magnetic flux in the primary winding of tokamak transformer. \end{itemize} }}