source: trunk/MagicSoft/TDAS-Extractor/Performance.tex@ 5622

\section{Performance}
\ldots {\it This section will be written after the previous one}

\subsection{Calibration}

In this section, we describe the tests performed using light pulses of different colour, 
pulse shapes and intensities with the MAGIC calibration pulser box. 
\par
The LED pulser system is able to provide fast light pulses of 3--4\,ns FWHM 
with intensities ranging from 3--4 photo-electrons to more than 500 in one inner pixel of the 
camera. These pulses can be produced in three colours (``errors'' denote the spectral width):

\begin{itemize}
\item Green: 520$\pm$40\,nm
\item Blue:  460$\pm$30\,nm
\item UV:    375$\pm$12\,nm
\end{itemize}

Whereas the UV-pulse is very stable, the green and blue pulses show sometimes secondary pulses after 
about 10--40\,ns from the real pulse.
\par
Available intensities depend on the involved pulser light colour: 
\begin{itemize}
\item Green: 6 -- 120 phes
\item Blue:  6 -- 500 phes
\item UV:    3 -- 50 phes
\end{itemize}

One can see that the very stable UV-pulses are unfortunately only available in such intensities as to 
not saturate the high-gain readout channel. However, the brightest combination of light pulses easily 
saturates all channels in the camera, but does not reach a saturation of the low-gain channel.
\par
Our tests can be classified into three subsections:

\begin{enumerate}
\item Stability tests: These include numbers of excluded pixels by the calibration software, 
numbers of reconstructed photo-electrons and counts of the numbers of outliers from the Gaussian 
reconstructed charge distributions. 
\item Linearity tests: These test the linearity of the extractor with respect to pulses of different intensity 
and colour.
\item Time resolution: These tests 
\end{enumerate}

\subsubsection{Stability tests}

\begin{figure}[htp]
\centering
\includegraphics[height=0.95\textheight]{UnsuitVsExtractor-1LedUV-Colour-04.eps}
\caption{Uncalibrated pixels and pixels outside of the Gaussian distribution for a very low 
intensity pulse.}
\end{figure}

\subsubsection{Linearity tests}



\subsubsection{Time resolution}




\subsection{Pulpo Pulses}
\subsection{MC Data}
\subsection{Cosmics Data?}
The results of this subsection are based on the following runs taken
on the 21st of September 2004.
\begin{itemize}
\item{Run 39000}: OffCrab11 at 19.1 degrees zenith angle and 106.2
azimuth.
\item{Run 39182}: CrabNebula at 19.0 degrees zenith angle and 106.0 azimuth.
\end{itemize}

\subsection{Pedestals}


%%% Local Variables: 
%%% mode: latex
%%% TeX-master: "MAGIC_signal_reco"
%%% TeX-master: "MAGIC_signal_reco."
%%% End: