Gabriele Cosmo
87 lines
2.7 KiB
Markdown
87 lines
2.7 KiB
Markdown
\page ExampleRE03 Example RE03
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Contact : M.Asai (SLAC/JLab), A.Kimura (AIT), T.Aso (TNCMT)
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## Introduction
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This example demonstrates how to use UI-command base scoring.
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It create parallel world(s) for defining scoring mesh(es).
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Due to some performance overhead, this functionality is not
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provided by default. To get it included, the pointer to
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G4ScoringManager must be accessed. The access to the static
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method G4ScoringManager::GetScoringManager() activates this
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functionality.
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### Geometry and primary particle
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It has just one water box in the world volume filled by air.
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No detector in the mass geometry. Particle gun shoots a gamma
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into the water box.
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### Physics
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The physics list is taken from referenced physics-list QGS_BIC
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in Geant4.
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## Macro files
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### "run.mac"
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run.mac is the main macro file of this example for both
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batch and interactive modes.
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In interactive mode, trajectories are not visualized by default
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for the sake of execution speed. To visualize them, comment out
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lines of `/vis/disable` and `/vis/enable` in run.mac.
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In addition, in sub-event parallel mode, only the trajectories
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created in the master thread are visualized by default.
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Un-comment the line of /run/trajectoriesToBeMerged in vis.mac
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to visualize all trajectories.
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draw.mac is used by run.mac to visualize a score.
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### Other macro files
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run2.mac through run4.mac macro files should be used
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independently. They demonstrate additional functionalities of
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command-based scoring. Each macro file create its own scoring
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parallel world(s).
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- run2.mac : defining three box meshes of different sizes
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and granurarities touching to each other
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- run3.mac : defining two box meshes of different sizes and
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granurarities overlaying one over the other to demonstrate
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changing granurarity of a box mesh
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- run4.mac : defining a cylindrical mesh
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IMPORTANT: DO NOT use more than one of these macro files in
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one execution of this example.
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drawSlice.mac and drawCylinderSlice.mac are used internally
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from run*.mac to draw a single slice of the corresponding mesh.
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## RE03ActionInitialization
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The RE03ActionInitialization class works for all Geant4 run
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modes, i.e. sequential mode, event-level paralle mode and
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sub-event-level parallel mode.
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## RE03UserScoreWriter
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G4ScoringManager has a default score writer which dumps every
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entry of one quantity of a mesh for all quantities of the mesh
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one by one in CSV format. To alternate the file format the user
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can implement his/her own score writer deriving from G4VUserScoreWriter
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base class and set it to G4ScoringManager. To demonstrate this,
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RE03UserScoreWriter is included in this example. To use this
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alternative writer, un-comment its instantiation in RE03.cc.
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