Gabriele Cosmo
105 lines
4.9 KiB
Plaintext
105 lines
4.9 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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-a standard Geant4 example GNUmakefile is provided
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setup with:
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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 database
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setup for analysis: AIDA 3.2.1, PI 1.3.3 (PI is Obsolete)
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Users can download the analysis tools from:
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http://aida.freehep.org/
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http://cern.ch/pfeiffer
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http://www.cern.ch/PI (OBSOLETE)
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------------------------------------------------------------------------
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----> 3.How to run the example.
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- batch mode:
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$G4WORKDIR/bin/Linux-g++/Brachy IridiumSourceMacro.mac
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$G4WORKDIR/bin/Linux-g++/Brachy IodiumSourceMacro.mac
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$G4WORKDIR/bin/Linux-g++/Brachy LeipzigSourceMacro.mac
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- Interative mode:
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3) $G4WORKDIR/bin/Linux-g++/Brachy
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The VisualisationMacro.mac is loaded automatically
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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>/primary/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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macros are provided as example: IodiumSourceMacro.mac,
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IridiumSourceMacro.mac, LeipzigSourceMacro.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 G4ANALYSIS_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)1Dhistogram with the energy deposit along the X axis in the plane
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containing the source.
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4)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 histograms and ntuple
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------------------------------------------------------------------------
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----> 5.Visualisation
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a macro is provided ad example of visualisation: VisualisationMacro.mac
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------------------------------------------------------------------------
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Further information at http://www.ge.infn.it/geant4/examples/index.html
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Contact: geant4-advanced-examples@cern.ch
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