Geant4 per Laboratorio di Fisica Nucleare

Pagina con il materiale della lezione sul Monte Carlo e Geant4 nel corso di Laboratorio di Fisica Subnucleare del Prof. Cavoto

Slides

Useful links

• Geant4 web page
• Reference Physics Lists
• Physics lists use cases
• A course on Geant4
• Geant4 doxygen

Esempi:

• Calcolo di un integrale con metodo MC
• Calcolo di π con metodo MC
• Esempio Geant4 (versione modificata di examples/extended/analysis/AnaEx01)
• Esempio C++ (inheritance e polymorphism)

Scaricare e compilare l'esempio di Geant4

Dopo aver scaricato ed installato Geant4 eseguire i seguenti comandi da una directory di lavoro:

git clone https://github.com/carlomt/AnaEx01.git 
mkdir anaEx01build
cd anaEx01build
cmake -DGeant4_DIR=G4INSTALLDIR ../AnaEx01
make

Gli altri esempi

Gli altri esempi sono scritti in python. Python è un linguaggio interpretato, quindi per eseguirli:

python NOMESCRIPT.py

Suggerimenti per installare Geant4

wget http://cern.ch/geant4/support/source/geant4.10.04.p01.tar.gz
wget http://cern.ch/geant4-data/releases/geant4.10.04.p01.tar.gz
tar -xvzf geant4.10.04.p01.tar.gz




this will create geant4.10.04.p01/

mkdir geant4.10.04.p01-build
mkdir geant4.10.04.p01-install
mkdir geant4-data
cd geant4.10.04.p01-build
cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DGEANT4_INSTALL_DATA=ON -DGEANT4_INSTALL_DATADIR=../geant4-data  -DGEANT4_BUILD_MULTITHREADED=ON -DGEANT4_USE_GDML=ON -DGEANT4_USE_QT=ON -DGEANT4_BUILD_CXXSTD=c++11 -DCMAKE_INSTALL_PREFIX=../geant4.10.04.p01-install ../geant4.10.04.p01
make -j `nproc`
make install

Add to your .bashrc (~/.bash_profile on a Mac):


export G4DIR=~/geant4.10.04.p01-install

. $G4DIR/bin/geant4.sh

alias g4make='cmake -DGeant4_DIR=$G4DIR'

Prerequisiti per compilare Geant4 su CentOS7:

sudo yum update
sudo yum groupinstall “Development Tools”
sudo yum install xerces-c xerces-c-devel
sudo yum install centos-release-scl-rh
sudo yum install qt qt-x11 qt-devel
sudo yum install emacs
sudo yum install python27 python27-pyhton-pip python27-pyhton-tools python27-numpy 

Add to your ~/.barshrc the line:

. /opt/rh/python27/enable

Suggerimenti per compilare cmake su CentOS7

wget https://cmake.org/files/v3.10/cmake-3.10.3.tar.gz
tar -xvzf cmake-3.10.3.tar.gz
cd cmake-3.10.3
 ./bootstrap && make && make install

Add to ~/.bashrc the line:


export PATH=/home/soft/cmake-3.10.3/bin:$PATH

Prerequisiti per compilare Geant4 su MacOS:

install XCode (https://developer.apple.com/xcode/) and type in a terminal:


xcode-select —install

install XQuartz (https://www.xquartz.org/)

install brew (https://brew.sh/) and the required libraries:

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew doctor
brew update
brew install cmake qt@4 xerces-c

As some students had problems in installing the Qt and Geant4 I prepared a brew receipe to install it. To use it:

brew install cmake carlomt/repo/qt@4 xerces-c wget

Experimentally:

brew install -v carlomt/repo/geant4

the -v option is to check the compiling, as it is quite long.
When it ends add the line:

. /usr/local/bin/geant4.sh

to the ".bash_profile" in you home. With this method Geant4 will be installed in:

/usr/local/Cellar/geant4/4.10.04.p01