Initialize a repository for writeup
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AlCapSimulationReport/.DS_Store
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AlCapSimulationReport/Makefile
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ALL: report.pdf
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%.pdf: %.tex Makefile *.sty
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#pdflatex --enable-write18 $< && pdflatex $< && pdflatex $<
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pdflatex $<
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clean:
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rm -f *.aux *.bbl *.blg *.log poster.pdf *.nav *.out *.snm *.toc
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AlCapSimulationReport/figs/Mu_momentum_all.png
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AlCapSimulationReport/figs/mu_at_target_all.pdf
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AlCapSimulationReport/figs/mu_hit_pos_0.5mm.pdf
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AlCapSimulationReport/figs/mu_hit_pos_200um_target.pdf
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AlCapSimulationReport/figs/mu_hit_pos_50um.png
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AlCapSimulationReport/figs/xy_target.pdf
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AlCapSimulationReport/labelfig.sty
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%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%
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%%%%% LabelFig.tex FOR LABELLING FIGURE INSERTS %%%%%
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%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%
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%%% AUTHORS: Raymond S\'eroul and Laurent Siebenmann
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%% A18645@FRCCSC21.bitnet and lcs@matups.matups.fr
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%%
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%%% VERSIONS: July, October, December 1991
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%%
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%%% PURPOSE:
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%% Occasionally, figures imported into TeX lack some labels.
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%% It may then be most appropriate to use TeX to provide
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%% the labels. Several macro sets, notably the
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%% LaTeX picture environment, provide means to insert
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%% labels. LabelFig.tex is a macro set offering
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%% labelling capability for other TeX formats such
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%% as Plain and AmSTeX. Unlike most graphics tools it is
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%% fast and of moderate size (costing about 1 Ko of main
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%% memory and 60 control sequences). Hopefully it will work
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%% in essentially all TeX environments.
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%%
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%%% THE IDEA:
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%% A grid is laid down on the figure, as in the LaTeX
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%% picture environment, and the labels are then
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%% located with respect to the grid.
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%% There are two auxiliary devices that give this
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%% macro package a touch of novelty even for LateX users.
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%% (a) the grid appears on the preview/preprint.
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%% For users with a fast preview this makes
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%% labeling an interactive process.
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%% (b) the grid is canonical, i.e. so naturally chosen
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%% that labels will probably remain well placed
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%% if the figure scale is changed.
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%%
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%%% MAIN POSTINGS : anonymous ftp
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%% --- ftp 129.69.1.12 (alias
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%% rusinfo.rus.uni-stuttgart.de); login: anonymous;
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%% password: <anything>.
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%% --- ftp 130.84.128.100 (alias rsovax.circe.fr);
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%% login: anonymous; password: <anything>; directory
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%% [anonymous.siebenmann]
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%% --- ftp 28.146.7.200 (alias shape.mps.ohio-state.edu);
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%% login: anonymous; password: <anything>;
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%% directory pub/osutex
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%%
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%%%% DOCUMENTATION:
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%% --- see LabelFig.doc
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%% (may be included at end, after \endinput)
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%%
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%%%% EXAMPLE OF USAGE:
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%% \input \LabelFig.tex
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%% \SetLabels
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%% (.3*.7) first label\\
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%% % center of baseline of the label
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%% % will go to position .3 from left
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%% % and .7 from bottom
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%% \L(.61*.333) $\Lambda_1\leq\Gamma$\\
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%% % \L places left edge of label
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%% % (rather than the center)
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%% % similarly use \R for right edge;
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%% % and \B for bottom, \E for equator, and \T for top
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%% \T\R(.3*.7) last label \\
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%% \endSetLabels
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%% \ShowGrid
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%% % lays grid on figure to label;
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%% % delete for final printing
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%% \AffixLabels{\BoxedEPSF{MyFigure}}
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%% % argument of \AffixLabels#1 should be a TeX box;
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%% % the grid will cover exactly that box.
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%% % (Here \BoxedEPSF is the figure insertion macro
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%% % of the package \BoxedEPS.tex (same sources)
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%% % for inserting encapsulated PostScript graphics.
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%% % But any other means of inserting
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%% % the figure can be used.)
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%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%% FORBID REREADING %%%%%
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%
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\ifx\LabelFigloaded\MYundefined\relax
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\else
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\message{ !!! LabelFig.tex ALREADY loaded !!!}
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\endinput\fi
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\def\LabelFigloaded{\relax}% now loaded
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%%% Beyond this point we use some control sequences
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%%% that are 'padlocked' with @ of category 11
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\chardef\LabelFigCatAt\the\catcode`\@
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\catcode`\@=11
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%%temporarily suppress Plain's logging of allocations
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\let\LabelFigwlog@ld\wlog
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\def\wlog#1{\relax}
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\ifx\\\MYundefined@
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\let\\\relax
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\fi
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%%%%%%% end of preamble
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\def\ms@g{\immediate\write16}
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\def\N@wif{\csname newif\endcsname }
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\def\Temp@ {\N@wif\ifIN@}
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\ifx\INN@\MYundefined@
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\else \let\Temp@\relax
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\fi
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\Temp@
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%%% \IN@0#1@#2@ : Is 1st exp of #1 in 1st exp of #2 ??
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%% Answer in \ifIN@
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%\newif\ifIN@ %% conserve if's
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\def\IN@{\expandafter\INN@\expandafter}
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\long\def\INN@0#1@#2@{\long\def\NI@##1#1##2##3\ENDNI@
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{\ifx\m@rker##2\IN@false\else\IN@true\fi}%
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\expandafter\NI@#2@@#1\m@rker\ENDNI@}
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\def\m@rker{\m@@rker}
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%%% \SPLIT@0#1@#2@ : Split 1st exp of #2 at 1st exp of #1
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%% \Initialtoks@ , \Terminaltoks@ will contain pieces
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\newtoks\Initialtoks@ \newtoks\Terminaltoks@
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\def\SPLIT@{\expandafter\SPLITT@\expandafter}
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\Initialtoks@{##1}\Terminaltoks@{##2}}\expandafter\TTILPS@#2@}
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%%% \Shifted@@#1#2#3 puts #3 in \hbox
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\newcount\gridcount
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\hskip-.2pt\vrule\hskip-.2pt\hfil
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{\vskip \Htt@\vskip 2pt
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\hbox{\vbox{\offinterlineskip\parindent=0pt\hsize=0pt
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\hbox to \Wdd@{%
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\vRule@\vRule@\vRule@\vRule@
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\hskip-.2pt\vrule\hskip-.2pt\hfil
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\vrule\hskip-.4pt}%
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\hrule\vskip-.4pt}}%
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%
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\wd\hGridbox@=0pt\ht\hGridbox@=0pt
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\wd\vGridbox@=0pt\ht\vGridbox@=0pt
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%
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\hbox{\box\hGridbox@\box\vGridbox@}%
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}
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\def\LabelsGlobal{\def\LabGl@b{\global}}
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\def\LabelsLocal{\def\LabGl@b{}}
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\LabelsGlobal %% default
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\def\SetLabels#1\endSetLabels{%
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\LabGl@b\Labeltoks@={#1()\\}%
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}
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\LabGl@b\Labeltoks@={()\\}
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\let\PlaceGrid@\relax
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\def\ShowGrid{\let\PlaceGrid@\PlaceGrid@@}
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\def\bAdjust@@{%
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\setbox\auxLabelbox@=\hbox{\raise \dp\auxLabelbox@
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\box\auxLabelbox@}}
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\def\bAdjust@{\let\vAdjust@\bAdjust@@}
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\def\eAdjust@@{\dimen0=-.5\ht\auxLabelbox@
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\advance\dimen0 by .5\dp\auxLabelbox@
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\setbox\auxLabelbox@=
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\hbox{\raise\dimen0\box\auxLabelbox@}}
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\def\eAdjust@{\let\vAdjust@\eAdjust@@}
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\def\tAdjust@@{%
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\setbox\auxLabelbox@=\hbox{\raise-\ht\auxLabelbox@
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\box\auxLabelbox@}}
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\def\tAdjust@{\let\vAdjust@\tAdjust@@}
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\let\vAdjust@\relax
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\def\lAdjust@{\let\hAdjust@\rlap}
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\def\rAdjust@{\let\hAdjust@\llap}
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\let\hAdjust@\relax\let\vAdjust@\relax
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\def\FetchLabel@#1(#2)#3\\{%
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\IN@0#2@@\ifIN@
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\setbox0=\hbox{\ignorespaces#1#3\unskip}%
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\ifdim\wd0>0pt
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\ms@g{}%
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\ms@g{ !!! Bad label(s)? !!!}%
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\message{ #1(#2)#3}%
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\fi
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\def\LabelMole@##1\endFetchLabel@{%
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\IN@0()\\@##1@%
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\ifIN@\def\Temp@{\FetchLabel@##1\endFetchLabel@}%
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\else\def\Temp@{}%
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\fi
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\Temp@
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}%
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\else
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\ignorespaces#1\unskip
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\setbox\auxLabelbox@=%
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\hbox to 0pt{\hss\ignorespaces\hAdjust@
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{\ignorespaces#3\unskip}\hss}%
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\vAdjust@
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\let\hAdjust@\relax\let\vAdjust@\relax
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\AugmentLabelBox@@{#2}%
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\ht\Labelbox@=0pt\dp\Labelbox@=0pt
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\let\LabelMole@\FetchLabel@%
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\fi\LabelMole@}
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\newtoks\XYSep@ %\XYSep@{*}
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\def\SetXYSeparator#1{%
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\IN@0#1@@\ifIN@\XYSep@{*}%
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\else
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\XYSep@{#1}%
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\fi
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}
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\SetXYSeparator*
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\def\AugmentLabelBox@@#1{%
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\IN@0\the\XYSep@ @#1@\ifIN@
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\SPLIT@0\the\XYSep@ @#1@%
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\setbox\Labelbox@=\hbox to 0pt{%
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\unhbox\Labelbox@
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\Shifted@@{\the\Initialtoks@\Wdd@}%
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{\the\Terminaltoks@\Htt@}%
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{\box\auxLabelbox@}}%
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\else
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\ms@g{}%
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\ms@g{ !!! Bad insertion point. !!!}%
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\message{ (#1\ this point was rejected.)}%
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\fi
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}
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\def\PlaceLabels@@{\bgroup\mathsurround=0pt%
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\def\Cr@{\\}%
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\let\L\lAdjust@\let\R\rAdjust@
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\let\B\bAdjust@\let\E\eAdjust@\let\T\tAdjust@
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\expandafter\FetchLabel@\the\Labeltoks@\endFetchLabel@
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\box\Labelbox@\egroup
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}%
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\let \PlaceLabels@\PlaceLabels@@
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\def\AffixLabels#1{\setbox\Coordinatebox@=\hbox{#1}%
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\Wdd@=\wd\Coordinatebox@ \Htt@=\ht\Coordinatebox@
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\advance\Htt@ \dp\Coordinatebox@
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\hbox{\copy\Coordinatebox@\kern-\Wdd@
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\Shifted@@{0pt}{-\dp\Coordinatebox@}%
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{\PlaceGrid@\PlaceLabels@}\kern\Wdd@}%
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\let\PlaceGrid@\relax
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\LabGl@b\Labeltoks@{()\\}%
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}
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%%% Restoring
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\let\wlog\LabelFigwlog@ld %%restore logging
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\catcode`\@=\LabelFigCatAt %%12 or 13
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\endinput
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%% end of LabelFig.tex
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AlCapSimulationReport/report.tex
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\documentclass[a4paper,11pt]{article}
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\usepackage[utf8x]{inputenc}
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\usepackage{ucs}
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\usepackage{amsmath}
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\usepackage{amsfonts}
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\usepackage{amssymb}
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\usepackage{labelfig}
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\usepackage{epsf}
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\usepackage{float}
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\usepackage{url}
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\usepackage{fancyhdr}
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\usepackage{verbatim}
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\usepackage{color,listings}
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\usepackage{booktabs}
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\usepackage{tabularx}
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\usepackage{natbib}
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\usepackage[all]{xy}
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\usepackage{graphicx}
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\usepackage{graphics}
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\usepackage{multirow}
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%\makeatletter
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%\def\@xobeysp{}
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%\makeatother
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%\setlength{\textwidth}{14cm}
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\author{Tran Hoai Nam}
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\title{Short report on Geant4 simulation for proton measurements at PSI}
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\begin{document}
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||||
\maketitle
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%\tableofcontents
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%\listoffigures
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%\listoftables
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\section{Set up}
|
||||
The geometry for the simulation is shown in Figure~\ref{fig:geo}, and
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||||
parameters of each component are listed in Table~\ref{tb:para}. Each dE/dx
|
||||
package consists of:
|
||||
\begin{itemize}
|
||||
\item one dE detector: silicon, 65 $\mu$m thick
|
||||
\item one E detector: silicon, 1500 $\mu$m thick
|
||||
\item charged particles veto counter: plastic scintillator, 1 mm thick
|
||||
\end{itemize}
|
||||
There is
|
||||
a small gap of 1 mm between the detectors in each dE/dx package, and distance
|
||||
from the beam counter to beam window is 5 mm. The germanium detector
|
||||
I used is just a simple cylinder. I have asked Malachi (from PNNL) to
|
||||
implement a more realistic geometry for it based on the detector PNNL group
|
||||
has.
|
||||
\begin{figure}[htpb]
|
||||
\centering
|
||||
\includegraphics[width=0.55\textwidth]{figs/geo_cut}\includegraphics[width=0.45\textwidth]{figs/geo_top}
|
||||
\caption{Geometry used in the simulation, left: cut view, right: top view}
|
||||
\label{fig:geo}
|
||||
\end{figure}
|
||||
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||||
\begin{table}[htb]
|
||||
\centering
|
||||
\caption{Parameters used in simulation}
|
||||
\vskip1ex
|
||||
\label{tb:para}
|
||||
\begin{tabularx}{0.9\textwidth}{lll}
|
||||
\toprule
|
||||
Items & Material & Dimensions \\
|
||||
\midrule
|
||||
Vacuum chamber & Stainless steel & H = 380 mm \\
|
||||
& & $\Phi$ = 310 mm \\
|
||||
& & 5 mm thick wall \\
|
||||
\midrule
|
||||
Beam window & Mylar & 200 $\mu$m thick ($2\times 100$ $\mu$m,\\
|
||||
& & not shown in fig)\\
|
||||
\midrule
|
||||
Muon counter & Plastic & 5$\times$5 cm$^2$ \\
|
||||
and muon veto & scintillator & 0.5 mm thick \\
|
||||
\midrule
|
||||
dE counter & Silicon & 5$\times$5 cm$^2$ \\
|
||||
& & 65 $\mu$m thick \\
|
||||
\midrule
|
||||
E counter & Silicon & 5$\times$5 cm$^2$ \\
|
||||
& & 1500 $\mu$m thick \\
|
||||
\midrule
|
||||
Charged particle& Plastic & 5$\times$5 cm$^2$ \\
|
||||
veto & scintillator & 1 mm thick \\
|
||||
\midrule
|
||||
Target & Si/Al & 5$\times$5 cm$^2$ \\
|
||||
& & various thickness 50 $-$ 200 $\mu$m \\
|
||||
\midrule
|
||||
Ge detector & Germanium & H = 30 mm \\
|
||||
& & $\Phi$ = 30 mm \\
|
||||
\midrule
|
||||
Lead shield & Lead & 5$\times$5 cm$^2$ \\
|
||||
& & 2 mm thick \\
|
||||
|
||||
\bottomrule
|
||||
\end{tabularx}
|
||||
\end{table}
|
||||
|
||||
%\begin{figure}[htpb]
|
||||
%\centering
|
||||
%\includegraphics[width=0.6\textwidth]{figs/geo_top}
|
||||
%\caption{Top view of the geometry}
|
||||
%\label{fig:topview}
|
||||
%\end{figure}
|
||||
|
||||
\section{Choosing initial muon momentum}
|
||||
|
||||
Initial muon momentum is varied to maximize muon stopping ratio in the target,
|
||||
the muon momentum at the target, after passing through the beam counter and the
|
||||
chamber window is plotted in the Figure~\ref{fig:mu_at_target}.
|
||||
Other parameters of the muon beam are:
|
||||
\begin{itemize}
|
||||
\item muon momentum spread 2 \%
|
||||
\item Gaussian spatial spread, $\sigma_x = \sigma_y = 5$ mm
|
||||
\end{itemize}
|
||||
|
||||
\begin{figure}[!htpb]
|
||||
\centering
|
||||
\includegraphics[width=\textwidth]{figs/mu_at_target}
|
||||
\caption{Momentum of muons at the target with different initial momentum}
|
||||
\label{fig:mu_at_target}
|
||||
\end{figure}
|
||||
|
||||
I also set the target area to be 15$\times$15 cm$^2$ to see where the muons are
|
||||
scattered after the chamber window. The results are shown in
|
||||
Figure~\ref{fig:mu_hit_pos_200um}.
|
||||
\begin{figure}[!htpb]
|
||||
\centering
|
||||
\includegraphics[width=\textwidth]{figs/mu_hit_pos_200um_target}
|
||||
\caption{Hit position of muons on target with different initial muon
|
||||
momentum, the red box is the actual area of the $5\times5$ cm$^2$ target}
|
||||
\label{fig:mu_hit_pos_200um}
|
||||
\end{figure}
|
||||
|
||||
Muon stopping ratio for different target thicknesses are listed in the
|
||||
Table~\ref{tb:stpratio}.
|
||||
|
||||
\begin{table}[htb]
|
||||
\begin{center}
|
||||
\caption{Muon stopping ratio (\%) in target when adjusting initial muon
|
||||
momentum}
|
||||
\label{tb:stpratio}
|
||||
\vskip1ex
|
||||
%\scalebox{0.75}{
|
||||
\begin{tabular}{ccccc}
|
||||
\toprule
|
||||
& 50 $\mu$m & 100 $\mu$m & 150 $\mu$m & 200 $\mu$m \\
|
||||
\midrule
|
||||
30 MeV/c & 7.8 & - & - & - \\
|
||||
29 MeV/c & 40.2 & 6.7 & - & - \\
|
||||
28 MeV/c & 51.7 & 38.7 & 4.2 & - \\
|
||||
27 MeV/c & 43.0 & 38.5 & 33.1 & 1.3 \\
|
||||
26 MeV/c & 31.4 & 31.4 & 31.3 & 22.5 \\
|
||||
25 MeV/c & 8.1 & 8.0 & 8.1 & 8.0 \\
|
||||
\bottomrule
|
||||
\end{tabular}
|
||||
%}
|
||||
\end{center}
|
||||
\end{table}
|
||||
|
||||
%%%%%%%%%%%%%%%%%%%%
|
||||
\section{Rate estimation}
|
||||
I have run the simulation with different thickness of the target: 50, 100, 150
|
||||
and 200 $\mu m$, initial momentum of muons is chosen from
|
||||
Table~\ref{tb:stpratio}.
|
||||
4$\times 10^6$ muons were generated in each run.
|
||||
The result of rate estimation for 10$^4$ muons/sec is shown in
|
||||
Table~\ref{tb:rates}. Some notes:
|
||||
\begin{itemize}
|
||||
\item triggered event: has hit on beam counter, AND no hit on veto counter
|
||||
\item stopped muon event: triggered, AND muon actually stopped inside the
|
||||
target. This is obtained by tracking the original muon, and seeing that it
|
||||
really stopped inside the target.
|
||||
\item hit on dE/dx package: coincidence with dE and E counters, AND no hit on
|
||||
charged particle veto.
|
||||
\end{itemize}
|
||||
|
||||
%\begin{table}[htb]
|
||||
%\centering
|
||||
%\caption{Rate for 10$^4$ muons/sec}
|
||||
%\vskip1ex
|
||||
%\label{tb:rate}
|
||||
%\begin{tabular}{ccccccccc}
|
||||
%\begin{tabularx}{\textwidth}{ccccccccc}
|
||||
%\toprule
|
||||
%Target & Triggered & Stopped &\multicolumn{3}{c}{Rate dE/dx
|
||||
%1 (s$^{-1}$)}&
|
||||
%\multicolumn{3}{c}{Rate dE/dx 2 (s$^{-1}$)}\\
|
||||
%\cline{4-9}
|
||||
%thickness & \% & \% & All &Proton&$\mu$ & All &Proton&$\mu$ \\
|
||||
%\midrule
|
||||
%200 $\mu m$ & 98.7 & 41.9 & 19.8&2.9 &0.2 & 126.9& 6.7 &104.7\\
|
||||
%150 $\mu m$ & 96.5 & 34.9 & 17.1&2.7 &0.2 & 124.7& 7.5 &105.2\\
|
||||
%100 $\mu m$ & 87.3 & 8.6 & 7.9&1.7 &0.2 & 122.8& 5.1 &114.6\\
|
||||
%50 $\mu m$ & 77.7 & 0.2 & 4.5&1.0 &0.1 & 100.1& 2.9 &96.7\\
|
||||
%\bottomrule
|
||||
%\end{tabularx}
|
||||
%\end{tabular}
|
||||
%\end{table}
|
||||
\begin{table}[htb]
|
||||
\begin{center}
|
||||
\caption{Estimated event rates for various targets of different
|
||||
thickness. Incoming $10^{4}$ muons/sec and proton
|
||||
emission rate of
|
||||
0.15 per muon capture are assumed. The efficiency of
|
||||
Si detector of 100 \% is also assumed. }
|
||||
\label{tb:rates}
|
||||
\vskip1ex
|
||||
\scalebox{0.85}{
|
||||
\begin{tabular}{ccccc}
|
||||
\toprule
|
||||
Target & Muon momentum &\% Stopping & Event rate (Hz) & Event rate (Hz) \\
|
||||
thickness ($\mu$m)& (MeV/c) &in target & All particles
|
||||
& Protons \\
|
||||
\midrule
|
||||
50 & 26 & 22.2 & 34.8 & 4.6 \\
|
||||
100 & 27 & 32.9 & 48.5 & 5.4 \\
|
||||
150 & 28 & 38.5 & 54.5 & 4.8 \\
|
||||
200 & 28 & 51.2 & 47.7 & 4.5 \\
|
||||
|
||||
%50 & 26 & 22.2 & 14.8 & 2.3 \\
|
||||
%100 & 27 & 32.9 & 18.5 & 2.1 \\
|
||||
%150 & 28 & 38.5 & 16.6 & 1.7 \\
|
||||
%200 & 28 & 51.2 & 19.8 & 2.0 \\
|
||||
\bottomrule
|
||||
\end{tabular}
|
||||
}
|
||||
\end{center}
|
||||
\end{table}
|
||||
|
||||
%The reasons why stopping ratio is very small compares to trigger ratio are:
|
||||
%\begin{itemize}
|
||||
%\item some muons stopped inside the beam counter,
|
||||
%\item and, some muons that passed the beam counter are scattered off the
|
||||
%target (the distance from the beam counter to the target is 210 mm).
|
||||
%\end{itemize}
|
||||
|
||||
%To investigate those effects, I fixed the target thickness to 200 $\mu m$, and
|
||||
%varied the thickness of beam counter from 0.7 mm to 1.5 mm. Fraction of muons
|
||||
%stopped in the beam counter, fraction that goes to the target are shown in
|
||||
%Table~\ref{tb:stop}. Some figures on momentum of original muons, and muons that
|
||||
%hit the target, and spatial distribution of muons that hit target are presented.
|
||||
|
||||
Note:
|
||||
\begin{itemize}
|
||||
\item \% get to target = $\frac{\text{number of muons hit the target}}
|
||||
{\text{total number of muons generated}}$
|
||||
\item \% stop in target = $\frac{\text{number of muons stopped inside target}}
|
||||
{\text{number of muons hit target}}$
|
||||
\item \% total stopping efficiency = $\frac{\text{number of muons stopped inside
|
||||
target}}{\text{total number of muons generated}}$
|
||||
\end{itemize}
|
||||
%\begin{table}[htb]
|
||||
%\centering
|
||||
%\caption{Percentage of stopping muon}
|
||||
%\vskip1ex
|
||||
%\label{tb:stop}
|
||||
%\begin{tabular}{ccccc}
|
||||
%\toprule
|
||||
%Beam counter & \% stop in & \% get to & \% stop in & \% total stopping \\
|
||||
%thickness & beam counter& target & target & efficiency\\
|
||||
%\midrule
|
||||
%0.7 mm & 0.02 & 64 & 34 & 42 \\
|
||||
%0.8 mm & 0.04 & 57 & 66 & 40 \\
|
||||
%0.9 mm & 0.06 & 51 & 89 & 45 \\
|
||||
%1.0 mm & 0.09 & 43 & 98 & 42 \\
|
||||
%1.1 mm & 0.2 & 35 & 99.4 & 35 \\
|
||||
%1.2 mm & 1.4 & 24 & 99.7 & 24 \\
|
||||
%1.3 mm & 12 & 12 & 99.7 & 12 \\
|
||||
%1.4 mm & 43 & 3 & 99.8 & 3 \\
|
||||
%1.5 mm & 79 & 0.5 & 99.9 & 0.5 \\
|
||||
%\bottomrule
|
||||
%\end{tabular}
|
||||
%\end{table}
|
||||
|
||||
%\begin{figure}[!htpb]
|
||||
%\centering
|
||||
%\includegraphics[width=\textwidth]{figs/mu_at_target}
|
||||
%\caption{Momentum of muons when entered target at different thickness of beam
|
||||
%counter}
|
||||
%\label{fig:mom}
|
||||
%\end{figure}
|
||||
%\begin{figure}[!htpb]
|
||||
%\centering
|
||||
%\includegraphics[width=\textwidth]{figs/mu_at_target_all}
|
||||
%\caption{Momentum of muons when entered target at different thickness of beam
|
||||
%counter, in comparison with original muon momentum}
|
||||
%\label{fig:mom_aio}
|
||||
%\end{figure}
|
||||
%\begin{figure}[!htpb]
|
||||
%\centering
|
||||
%\includegraphics[width=\textwidth]{figs/xy_target}
|
||||
%\caption{Spatial of muon hits on target when changing beam counter thickness}
|
||||
%\label{fig:xy}
|
||||
%\end{figure}
|
||||
|
||||
\section{Side notes on structure of the output ROOT file}
|
||||
I used ROOT TObject to construct the output of the simulation (as pointed out
|
||||
by Malachi, this is not convenient for analysing).
|
||||
An event contains following information:
|
||||
\begin{itemize}
|
||||
\item event id,
|
||||
\item deposited energies in all detectors and target,
|
||||
\item a flag to show if there is a muon stopped inside the target,
|
||||
\item hits on each detectors, each hit has:
|
||||
\begin{itemize}
|
||||
\item type of the hit: initial muon stopped in the target, a particle
|
||||
entered or exited a detector, or a new particle is spawned in
|
||||
a detector
|
||||
\item a detector id,
|
||||
\item particle info: name, energy, hit position, time
|
||||
\end{itemize}
|
||||
\end{itemize}
|
||||
|
||||
\end{document}
|
||||
Reference in New Issue
Block a user