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\def\JEXIIl{\begin{frame} \frametitle{Tokamak GOLEM for IAEA Joint Experiment \\ 3 proposals}
 \begin{itemize}
 \im  Characterise resistivity dependence of HTS coils on current.
golem \im Tests of HTS switch on GOLEM tokamak.
 \im  Installation and investigation of RF pre-ionisation on GOLEM tokamak.
 \end{itemize}
\end{frame}}


\def\JEXIIa{\begin{frame} \frametitle{Task II: Tests of HTS switch on GOLEM tokamak}
 \begin{itemize}
\im Background: 
\bi
\im 3 types of power supply for Golem HTS: inductive, DC PS, capacitor bank. 
\im Simplification of PS on Golem: operate HTS coil without any current supply.
\ei
\im Scope and Method:
\bi
\im Install a HTS short-cut above the level of liquid N 
\im After energising the coil with DC PS, add LN to make the shortcut superconducting and switch off the PS 
\im Let the current decay and measure the decay time. 
\ei
\im The next step may be installation of heated short-cut which will operate after the heating is switched off. 
 \end{itemize}
\end{frame}}

\def\JEXIIb{\begin{frame} \frametitle{ Task I: Characterise resistivity dependence of HTS coils on current.}
    \centering
    \GWincludegraphics{width=0.6\textwidth}{Events/JE/XII/Uvod/locals/HTS/HTS.jpg}
\bi
\im Background: Previous observation showed  sudden increase in HTS resistivity above 250-300A of HTS current. 
\im Goal: To get more detailed data at the point of transition.
\im Goal: To understand conditions and consequences of current quenches.
 \end{itemize}
\end{frame}}

\def\JEXIIbResI{\begin{frame} \frametitle{Experimental Setup I}
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/CIMG0147.JPG}
\end{frame}}

\def\JEXIIbResIa{\begin{frame} \frametitle{Experimental Setup II}
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/version-4_html_6986a4c4.jpg}
\end{frame}}


\def\JEXIIaResI{\begin{frame} \frametitle{HTS switch step I: Table Top Experiment }
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/CIMG0156.JPG}
~\\
Extremely low inductance (and lack of time) - no results
\end{frame}}

\def\JEXIIbResV{\begin{frame} \frametitle{Results}
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/plot_overview.pdf}
\end{frame}}



\def\JEXIIbResII{\begin{frame} \frametitle{HTS used as a equilibrium field:\\ Plasma \& $I_{HTS}=85$A (discharge 2 ms prolongation)}
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/graphHTSprolong.jpg}
\end{frame}}


\def\JEXIIc{\begin{frame} \frametitle{ Task III:  Installation and investigation of RF pre-ionisation on GOLEM tokamak}
\bi
\im Background: RF pre-ionisation is a tool to to reduce AC losses during current ramp-up in HTS coils.
\im Scope: to install a low-power magnetron at the EC fundamental harmonics for the toroidal field of ~ 0.1T at 2.45GHz, ~800W injected power.
\end{itemize}
\end{frame}}

\def\JEXIIcResI{\begin{frame} \frametitle{RF preionization}
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/cimg0142.jpg}
\end{frame}}

\def\JEXIIcResII{\begin{frame} \frametitle{Results ( $B_t$ \& $H_2$ ) ... one hit}
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/graphMWonehit.jpg}
\end{frame}}

\def\JEXIIcResIII{\begin{frame} \frametitle{Results ( $B_t$ \& $H_2$ ) ... double}
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/graphMWdouble.jpg}
\end{frame}}

\def\JEXIIcResIV{\begin{frame} \frametitle{Results ( $B_t$ \& $H_2$ \& $E_t$ ) ... no flux}
\GWincludegraphics{width=0.8\textwidth}{Events/JE/XII/Uvod/locals/graphMWwithE.jpg}
\end{frame}}