Changeset 6495


Ignore:
Timestamp:
02/15/05 18:01:24 (20 years ago)
Author:
hbartko
Message:
*** empty log message ***
File:
1 edited

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  • trunk/MagicSoft/TDAS-Extractor/Algorithms.tex

    r6494 r6495  
    792792\subsubsection{Real Fit to the Expected Pulse Shape }
    793793
    794 This extractor is not yet implemented as MARS-class...
    795 \par
    796 It fits the pulse shape to a Landau convoluted with a Gaussian using the following
    797 parameters:...
    798 
    799 \ldots {\it Hendrik, Wolfgang ... }
     794This extractor is not yet implemented as MARS-class... \ldots {\it Hendrik, Wolfgang ... }
     795\par
     796
     797The digital filter is a sophisticated numerical tool to fit the read-out FADC samples with the expected wave form taking the autocorrelation of the noise into account. In order to cross-check the results a pulse shape fit has been implemented using the root TH1::Fit routine. For each event the FADC samples of each pixel are filled into a histogram and fit by the expected wave form having the time shift and the area of the fit pulse as free parameters. The results are in very good agreement with the results of the digital filter.
     798
     799Figure \ref{fig:probability_fit} shows the distribution of the fit probability for simulated MC pulses. Both electronics and NSB noise are simulated. The distribution is mainly flat with a slight excess in the very lowest probability bins.
     800
     801
    800802
    801803\begin{figure}[h!]
     
    804806\end{center}
    805807\caption[Fit Probability.]{Probability of the fit with the input signal shape to the simulated FADC samples
    806 including electronics and NSB noise.} \label{fig:w_amp_MC_input_TDAS.eps}
     808including electronics and NSB noise.} \label{fig:probability_fit}
    807809\end{figure}
    808810
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