Gabriele Cosmo
106 lines
5.3 KiB
Plaintext
106 lines
5.3 KiB
Plaintext
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=========================================================
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Geant4 - Brachytherapy example
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=========================================================
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README
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---------------------
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------------------------------------------------------------------------
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----> Introduction. |
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Brachytherapy example simulates energy deposit in a Phantom filled with |
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soft tissue for:
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1) Iridium source (endocavitary brachytherapy). |
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2) Iodium source (interstitial brachytherapy).
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3) Leipzig Applicator (superficial brachytherapy). |
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------------------------------------------------------------------------
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----> 1.Experimental set-up. |
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The default source is an Ir-131 source put in the center of the Phantom.|
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The Phantom is a box (dimension:30cm), it is gridded in
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voxels (1.mm dimension) |
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-------------------------------------------------------------------------
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----> 2.SET-UP
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-example enviroment with the compiler 3.2
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-a standard Geant4 example GNUmakefile is provided |
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setup with: |
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compiler = gcc-3.2
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G4SYSTEM = linux-g++ |
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The following environment variables need to be set: |
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G4LEDATA: points to low energy data base - G4EMLOW2.2 |
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setup for analysis with AIDA 3.0/Anaphe 5.0.5 for user with account |
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on lxplus:
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setenv G4ANALYSIS_USE 1
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setenv G4ANALYSIS_BUILD 1 |
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source /afs/cern.ch/sw/lhcxx/share/LHCXX/5.0.5/scripts/setupAnaphe.csh
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setenv PATH ${PATH}:/afs/cern.ch/sw/lhcxx/share/LHCXX/5.0.5/scripts/ |
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Please take a look to the Anaphe/Lizard web page |
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http://anaphe.web.cern.ch/anaphe
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for more info |
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------------------------------------------------------------------------
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----> 3.How to run the example. |
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- batch mode:
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$G4WORDIR/bin/Linux-g++/Brachy IridiumSourceMacro.mac |
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$G4WORDIR/bin/Linux-g++/Brachy IodiumSourceMacro.mac
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$G4WORDIR/bin/Linux-g++/Brachy LeipzigSourceMacro.mac
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- Interative mode:
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3) $G4WORDIR/bin/Linux-g++/Brachy |
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-->possible different configurations for interactive mode: |
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1)Ir source: |
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idle>/run/beamOn NumberOfEvents ...and then
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idle>exit |
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2)Leipzig Applicator: |
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idle>/source/switch Leipzig
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idle>/run/beamOn NumberOfEvents ...and then |
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idle> exit
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3) Iodium source:
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idle>/source/switch Iodium |
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idle>/run/energy Iodium
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idle>/run/beamOn NumberOfEvents ...and then |
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idle>exit
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*Before the run you can also change the absorber material of the
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Phantom: |
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idle>/phantom/selectMaterial materialName
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- batch mode: executable Brachy macroFile.mac
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a macro is provided as example: IodiumSourceMacro.mac |
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(ex. $G4WORKDIR/bin/Linux-g++/Brachy IodiumSourceMacro.mac)
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------------------------------------------------------------------------
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----> 4. Simulation output |
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if ANALYSIS_USE = 1 in the set-up, the output is brachytherapy.hbk |
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It contains:
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1)1Dhistogram with the primary particle energy |
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2)2Dhistogram with the distribution of energy in the plane
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(x,z,energy) containing the source (YThickness = 1. mm) |
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3)Ntuple with the 3D energy deposit in the Phantom
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Units: the energy deposit is in MeV;
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x, y, z in mm for both 2D-histogram and ntuple |
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------------------------------------------------------------------------
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----> 5.Visualisation |
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a macro is provided ad example of visulisation: VisualisationMacro.mac |
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run $G4WORKDIR/bin/Linux-g++/Brachy VisualisationMacro.mac
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------------------------------------------------------------------------
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for comments, advices, doubts and questions: guatelli@ge.infn.it
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for more info http://www.ge.infn.it/geant4/examples/index.html
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last modified: Susanna Guatelli 28/5/2003 |