Changeset 6495
- Timestamp:
- 02/15/05 18:01:24 (20 years ago)
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- 1 edited
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trunk/MagicSoft/TDAS-Extractor/Algorithms.tex
r6494 r6495 792 792 \subsubsection{Real Fit to the Expected Pulse Shape } 793 793 794 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 ... } 794 This extractor is not yet implemented as MARS-class... \ldots {\it Hendrik, Wolfgang ... } 795 \par 796 797 The 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. 798 799 Figure \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. 800 801 800 802 801 803 \begin{figure}[h!] … … 804 806 \end{center} 805 807 \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}808 including electronics and NSB noise.} \label{fig:probability_fit} 807 809 \end{figure} 808 810
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