Commit 6ededd6a authored by Jens Kroeger's avatar Jens Kroeger
Browse files

improved text (how-to-align)

parent b6003f58
......@@ -12,15 +12,12 @@ For the alignment of the telescope and DUT, these modules are available in \corr
\end{itemize}
Scripts to run and configure \corry should be stored in a separate git repository.
Working examples can be found here: \textbf{path/to/corryvreckan/testing/}.
Working examples can be found here: path/to/corryvreckan/\textbf{testing/}.
It consists of two subdirectories (\textcolor{red}{not complete yet...will work on this}):
\begin{itemize}
\item \textbf{geometries/} contains all the detector files which provide detector information and alignment information
\item \textbf{configurations/} contains the scripts that are run to call and configure \corry for alignment and analysis.
\end{itemize}
It contains the subdirectory \textbf{geometries/} with all the detector files which provide detector and alignment information.
It also contains the scripts that are run to call and configure \corry for alignment and analysis.
\textbf{Note:} \corry can handle any file extensions for geometry and configuration files. The examples, however, follow the convention of using \texttt{*.geo} for geometry and \texttt{*.conf} for configuration files for clarity.
\textbf{Note:} \corry can handle any file extensions for geometry and configuration files. The examples, however, follow the convention of using the extension \texttt{*.conf} for both detector and configuration files.
The general procedure that needs to be followed for a sucessful alignment is outlined here and explained in detail below.
\begin{enumerate}
......@@ -52,9 +49,9 @@ To have a first look at the initial alignment guess, one can run
\begin{verbatim}
/path/to/corryvreckan/bin/corry
-c analyse_telescope.conf
-o detectors_file=<detectorsFile>
[-o detectors_file=<detectorsFile>
-o histogramFile=<histogramFile>
-o EventLoaderTimepix3.inputDirectory=<inputDir>
-o EventLoaderTimepix3.inputDirectory=<inputDir>]
\end{verbatim}
The \texttt{spatialCut} in \texttt{[Tracking4D]} should be set to mulitple ($\sim4$) pixel size.
......@@ -91,10 +88,10 @@ Then run
\begin{verbatim}
/path/to/corryvreckan/bin/corry
-c align_telescope.conf
-o detectors_file=<detectorsFile>
[-o detectors_file=<detectorsFile>
-o detectors_file_updated=<detectorsFileUpdated>
-o histogramFile=<histogramFile>
-o EventLoaderTimepix3.inputDirectory=<inputDir>
-o EventLoaderTimepix3.inputDirectory=<inputDir>]
\end{verbatim}
The actual prealignment is only performed after the events have been analysed and written to the detectors file in the finalizing step.
......@@ -152,13 +149,6 @@ If the alignment keeps to fail, it is possible to allow only for rotational or t
\textbf{Note:} when re-running the procedure from a slightly different initial geometry, the resulting alignment (i.e.~the numbers in the detectors file) will differ slightly which is acceptable. What should \textbf{not} differ is the width of the residuals.
%\begin{figure}[h]
% \centering
% \includegraphics[width=0.35\textwidth]{obama}
% \caption{Placeholder}
% \label{fig:placeholder}
%\end{figure}
\section{Aligning the DUT}
\label{sec:align_dut}
Once the telescope is aligned, its geometry is not touched anymore. From now on, it is used to build tracks which are then matched to clusters on the DUT.
......@@ -168,10 +158,10 @@ The prealignment of the DUT follows the same strategy as for the telescope. To l
\begin{verbatim}
/path/to/corryvreckan/bin/corry
-c analyse_atlaspix.conf
-o detectors_file=<detectorsFile>
[-o detectors_file=<detectorsFile>
-o histogramFile=<histogramFile>
-o EventLoaderTimepix3.inputDirectory=<inputDir_TPX>
-o EventLoaderATLASpix.inputDirectory=<inputDir_APX>
-o EventLoaderATLASpix.inputDirectory=<inputDir_APX>]
\end{verbatim}
needs to be run.
If no better guess is available, the initial alignment of the DUT should be set to $x=y=z=0$.
......@@ -215,11 +205,11 @@ Then run
\begin{verbatim}
/path/to/corryvreckan/bin/corry
-c align_dut.conf
-o detectors_file=<detectorsFile>
[-o detectors_file=<detectorsFile>
-o detectors_file_updated=<detectorsFileUpdated>
-o histogramFile=<histogramFile>
-o EventLoaderTimepix3.inputDirectory=<inputDir_TPX>
-o EventLoaderATLASpix.inputDirectory=<inputDir_APX>
-o EventLoaderATLASpix.inputDirectory=<inputDir_APX>]
\end{verbatim}
\textbf{Note:} The histograms of the residuals for the DUT in \texttt{[Tracking4D]} are empty. The correct ones can be found in \texttt{[AnalysisDUT]}.
......
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