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10/12/04 14:13:50 (20 years ago)
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gaug
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trunk/MagicSoft/TDAS-Extractor
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  • trunk/MagicSoft/TDAS-Extractor/MAGIC_signal_reco.tex

    r5216 r5243  
    6060%% body %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    6161
    62 %------------------------------------------------------------
    63 
    64 
    65 
    66 \section{Introduction}
    67 
    68 \begin{itemize}
    69 \item{Short description of the MAGIC read-out system}
    70 \end{itemize}
    71 
    72 \section{Pulse Shape Reconstruction}
    73 
    74 \begin{itemize}
    75 \item{Algorithm: overlay many events}
    76 \item{Differences cosmics / calibration}
    77 \item{Implementation / parameterization in the MC.
    78 \newline
    79 \newline
    80 \ldots {\it MAYBE, we should create MC calibration pulses for the subsequent studies }
    81 \newline
    82 \newline}
    83 \end{itemize}
    84 
    85 \section{Signal Reconstruction Algorithms}
    86 
    87 \ldots {\it In this section, the extractors are described, especially w.r.t. which free parameters are left to play,
    88 how they subtract the pedestal, how they compare between calibration and cosmics pulses and how an
    89 extraction in case of a pure pedestal event takes place. }
    90 \newline
    91 \newline
    92 {\it Missing coding:
    93 \begin{itemize}
    94 \item Implementing the AB-flag for all extractors \ldots Markus
    95 \item Implementing a low-gain extraction based on the high-gain information \ldots Arnau
    96 \item Joining the Sliding Window and Highest Integral extractor into one \ldots Markus
    97 \item Real fit to the expected pulse shape \ldots Hendrik, Wolfgang ???
    98 \end{itemize}
    99 }
    100 
    101 
    102 \subsection{Pure signal extractors}
    103 \subsubsection{Fixed Window}
    104 \subsubsection{Fixed Window Peak Search}
    105 \subsubsection{Fixed Window with integrated spline}
    106 
    107 \subsection{Pure time extractors}
    108 \subsubsection{Highest Integral}
    109 
    110 \subsection{Combined extractors}
    111 \subsubsection{Sliding Window with Highest Integral}
    112 \subsubsection{Digital Filter}
    113 \subsubsection{(Fast) Spline with Amplitude extraction}
    114 \subsubsection{Real fit to the expected pulse shape \newline
    115 \newline
    116 }
    117 
    118 %References: \cite{OF77} \cite{OF94}.
    119 
    120 \section{Criteria for an optimal pedestal extraction}
    121 
    122 \ldots {\it In this section, the distinction is made between:
    123 \begin{itemize}
    124 \item Defining the pedestal RMS as contribution
    125 to the extracted signal fluctuations (later used in the calibration)
    126 \item Defining the Pedestal Mean and RMS as the result of distributions obtained by
    127 applying the extractor to pedestal runs (yielding biases and modified widths).
    128 \item Deriving the correct probability for background fluctuations based on the extracted signal height.
    129   ( including biases and modified widths).
    130 \end{itemize}
    131 \ldots Florian + ???
    132 \newline
    133 \newline
    134 }
    135 \section{Criteria for the Optimal Signal Extraction}
    136 
    137 \subsection{Resolution (amplitude and time)}
    138 \ldots {\it In this section, the jitter to exactly identical input pulses is measured, for times, amplitudes,
    139 high-gain and low-gain pulses
    140 \begin{itemize}
    141 \item Jitter to pulpo pulses  \ldots Hendrik
    142 \item Jitter to pedestals (of different intensity) \ldots Hendrik
    143 \item Comparing MC signal with and w/o noise of different intensity \ldots Nuria
    144 \item Comparing the low-gain to high-gain ratio for different intensities \ldots Markus
    145 \item Derive the time jitter to calibration pulses \ldots Maxim ???
    146 \end{itemize}
    147 }
    148 
    149 \subsection{Bias}
    150 \ldots {\it In this section, the bias of the extractor for low and high intensities is defined and measured
    151 \begin{itemize}
    152 \item Bias to pedestals (of different intensity) \ldots Hendrik
    153 \item Comparing MC signal with and w/o noise of different intensity \ldots Nuria
    154 \end{itemize}
    155 }
    156 
    157 \subsection{Signal to Noise}
    158 \ldots {\it In this section, the signal to noise of an extractor is determined, for times and amplitudes
    159 \newline \ldots Maxim ???, Thomas ???
    160 }
    161 
    162 \subsection{Stability}
    163 \ldots {\it In this section, the stability of an extractor to slightly varying pulse shapes is examined.
    164 \begin{itemize}
    165 \item Stability w.r.t. different weights files \ldots Hendrik
    166 \item Outliers in time and amplitude extractions \ldots ???
    167 \item Stability of conversion factors from the calibration \ldots Markus
    168 \item Stability w.r.t. the calibration secondary pulses \ldots Hendrik ???
    169 \end{itemize}
    170 }
    171 
    172 \subsection{Linearity}
    173 \ldots {\it In this section, the Nuria plots are examined \newline \ldots Nuria
    174 
    175 \subsection{Treatment of calibration pulses}
    176 \ldots {\it In this section, the question of the different pulse shapes between calibration pulses, its
    177 secondary pulses, possible secondary pulses from hadronic showers and the typical Cherenkov
    178 pulses are extracted by the different extractors and typical dependencies examined, like the
    179 Razmik plot, the number of photo-electrons with number of slices, comparisons between different colours, etc.
    180 \newline \ldots Hendrik??? , Markus???  + ????}
    181 
    182 \subsection{Low gain extraction}
    183 \ldots {\it In this section, the stability of the low-gain extraction w.r.t. the high-gain extraction is
    184 examined. Useful plots are still to be defined.
    185 \newline \ldots Arnau ????}
    186 
    187 \subsection{Applicability for different sampling speeds / no pulse shaping.}
    188 \ldots {\it In this section, some comments of Hendrik will be made}
    189 
    190 \subsection{CPU requirements}
    191 \ldots {\it In this section, the needed CPU time is measured for each extractor independently
    192 \newline \ldots ALL (after all)}
    193 
    194 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    195 
    196 \section{Performance}
    197 \ldots {\it This section will be written after the previous one}
    198 
    199 \subsection{Calibration}
    200 \subsection{Pulpo Pulses}
    201 \subsection{MC Data}
    202 \subsection{Cosmics Data?}
    203 \subsection{Pedestals}
    204 
    205 \section{Discussion}
    206 \ldots {\it This section will discuss the best signal extractor \newline \ldots Thomas ???, Florian }
    207 
    208 \section{Conclusions}
    209 \ldots {\it This section will propose the best signal extractor.}
    210 
    211 %------------------------------------------------------------------------------
    212 
     62\include{Introduction}
     63\include{Reconstruction}
     64\include{Algorithms}
     65\include{Pedestal}
     66\include{Criteria}
     67\include{Performance}
     68\include{Discussion}
     69\include{Conclusions}
    21370
    21471\bibliography{bibfile}
    21572\bibliographystyle{bibstyle}
    216 
    21773
    21874\end{document}
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