78 lines
3.1 KiB
Markdown
78 lines
3.1 KiB
Markdown
# musrSim simulation #
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### Contents ###
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This is the C++ source code for the musrSim simulation software which is intended to be a general tool to design and simulate µSR spectrometer with very high accuracy. To compile and run musrSim, the user must have a recent Geant4 (tested with v11.0.3 and v11.2.0) and Root installed (tested with v6-22-06 and v6-30-02, but the version should not be critical).
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* The code is specifically tuned to simulate muon spin spectrometers.
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* The code is maintained by the Laboratory for Muon Spin Spectroscopy at PSI.
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### Supported platforms ###
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* Linux and any other decent OS that can run Root and GEANT4.
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### Installation ###
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Compile and install Geant4, we recommend the use of the following cmake flags
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cmake -DCMAKE_INSTALL_PREFIX=/path/to/G4installation /path/to/G4source -DGEANT4_USE_QT=ON -DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_OPENGL_X11=ON
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We also recommend that you use [`view3dscene`](https://castle-engine.io/view3dscene.php) as a VRML viewer.
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Following the installation of Gean4, set the correct environment variables. This can be done easily by editing `/path/to/G4installation/bin/geant4.sh` to uncomment the lines defining Geant4 data location:
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export G4NEUTRONHPDATA=$GEANT4_DATA_DIR/G4NDL4.7
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export G4LEDATA=$GEANT4_DATA_DIR/G4EMLOW8.5
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export G4LEVELGAMMADATA=$GEANT4_DATA_DIR/PhotonEvaporation5.7
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export G4RADIOACTIVEDATA=$GEANT4_DATA_DIR/RadioactiveDecay5.6
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export G4PARTICLEXSDATA=$GEANT4_DATA_DIR/G4PARTICLEXS4.0
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export G4PIIDATA=$GEANT4_DATA_DIR/G4PII1.3
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export G4REALSURFACEDATA=$GEANT4_DATA_DIR/RealSurface2.2
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export G4SAIDXSDATA=$GEANT4_DATA_DIR/G4SAIDDATA2.0
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export G4ABLADATA=$GEANT4_DATA_DIR/G4ABLA3.3
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export G4INCLDATA=$GEANT4_DATA_DIR/G4INCL1.2
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export G4ENSDFSTATEDATA=$GEANT4_DATA_DIR/G4ENSDFSTATE2.3
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Then run the following to setup the correct variables
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. /path/to/G4installation/bin/geant4.sh
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You will probably need to do that everytime you want to run the simulation or add the line above to your `.bashrc`.
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Clone the musrSim repository
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git clone https://zaher-salman@bitbucket.org/zaher-salman/musrsim.git
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then (see below for RedHat or other old systems)
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cd musrsim
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mkdir build
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cd build
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cmake ../
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make -j8
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make install
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This will install the `musrSim` binary in `/usr/local/bin`, but it can be moved to any other directory in your `PATH`.
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### Running the simulations ###
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Prepare a file, `finlename.mac`, with your beamline and spectrometer design following the instruction in the [musrSim manual](https://bitbucket.org/zaher-salman/musrsim/src/master/doc/musrSim.pdf). Create a folder `data` and then run the simulation
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musrSim filename.mac
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### RedHat and old systems ###
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For compilation on RedHat systems:
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* Make sure that the `gcc-toolset-13` package is installed
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* Use the follwoing compilation command: `scl enable gcc-toolset-13 'make -j8'`
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* Use `CMakeLists_rhel8.txt`: `cp CMakeLists_rhel8.txt CMakeLists.txt`
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* If you have Root 6.30 use `FindROOT_6.30.cmake`: `cp FindROOT_6.30.cmake FindROOT.cmake`
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### Contact ###
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Zaher Salman <zaher.salman@psi.ch>
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