\def\DiagnTotalCurrent{
\begin{frame} \frametitle{Basic diagnostic - total current $I_{p+ch}$ }
\begin{minipage}[]{0.34\tw}  
        \GWincludegraphics{width=1.2\textwidth, angle=90}{Diagnostics/Basic/PlasmaPlusChamberCurrent/Photos/10/DSC_0232.JPG}
  \end{minipage} 
\begin{minipage}[]{0.64\tw}
Is deduced from Rogowski coil measurements   with three operations:
\begin{itemize}
\item offset identification from first 4500 data rows).
\item time integration (it is a magnetic diagnostic, where $U_{acquired} \sim \frac{dI_{p+ch}}{dt}$)
\item multiplication of calibration factor \href{http://golem.fjfi.cvut.cz/wiki/Diagnostics/Basic/PlasmaPlusChamberCurrent/IrogCalibration.page}{calibration factor $C_{rog}$}
\end{itemize}
\end{minipage}
\def\rogoffs{\left<U^{rog}_{offset}\right>}
$\rogoffs = \frac{1}{4500} \sum \limits_{i=0}^{4500} U_i^{rog};$\ $I_{p+ch}\approx C_{rog} (\sum \limits_{i=0}^{40000}  U_i^{rog}\Delta t - \rogoffs t)$.
\end{frame}}


\def\content{The block diagram for the total current measured by the Rogowski coils is only slightly more complicated: Switching the toroidal magnetic field on causes an offset in the toroidal current measurement, which has to be corrected by subtracting the average value measured in the $\tau_{OH}$ long interval before switching on the toroidal electrical field from the integrated current value.
}
\def\fig{
\begin{figure}[ht]
\centering
\GWincludegraphics{trim=1cm 5cm 0cm 4cm, clip=true, width=0.5\textwidth}{Diagnostics/Basic/PlasmaPlusChamberCurrent/bd_dI_t.pdf}
	\caption{Block diagram showing the steps of data processing for total plasma current measurement.}
	\label{fig:bd_dI_t}
\end{figure}
}

\def\ccaption#1{\\ \centering #1}
\def\IpchBase{
    \centering
    \begin{figure}
    \begin{minipage}{0.47\tw}
    \GWincludegraphics{width=0.9\tw}{Diagnostics/Basic/PlasmaPlusChamberCurrent/Sketch/das.pdf}
    \ccaption{Principle}
    \GWincludegraphics{width=0.9\tw}{ShowRooms/PlasmaPerformance/TextBookPlasma/11722/I_p+ch.pdf}
    \ccaption{Signal}
    \end{minipage}
    \hspace{0.02\textwidth}
    \begin{minipage}{0.47\tw}
    \GWincludegraphics{width=0.9\tw}{Diagnostics/Basic/PlasmaPlusChamberCurrent/ReprePhoto.jpg}
    \ccaption{Photo}
    \end{minipage}
    \end{figure}
}

\def\IpchSlide{
\begin{frame} \frametitle{Basic diagnostics: Total chamber+plasma current $I_{ch+p}$}
\IpchBase
\end{frame}}