Geant4 User's Guide For Application Developers Examples

9.2.1 Extended Example Summary

• testing and validation of processes and tracking,
• demonstration of Geant4 tools, and
• extending the functionality of Geant4.

• Analysis

  • A01 - hit-scoring and histogramming using the AIDA interface
  • AnaEx01 - histogram and tuple manipulations using an AIDA compliant system
  
  

• Electromagnetic

  • TestEm1 - single box, effects of individual processes (activate-inactivate) on the tracking: number of steps, step length, etc.
  • TestEm2 - shower development in an homogeneous material : longitudinal and lateral profiles
  • TestEm3 - shower development in a sampling calorimeter : energy deposited, longitudinal profile and energy flow
  • TestEm4 - test of low energy (~MeV) photon processes: spectrum of energy deposited in a single material
  • TestEm5 - single, thin or thick, layer: spectra of energy deposited, transmitted and back-scattered particles
  • TestEm6 - physics list for rare, high energy, electromagnetic processes: gamma conversion and e+ annihilation into pair of muons
  • TestEm7 - absorption of charged particles in homogeneous medium: Bragg curve and deposited dose in tallies
  • TestEm8 - test of photo-absorption-ionisation model in thin absorbers, and transition radiation
  • TestEm9 - shower development in a crystal calorimeter; cut-per-region
  • TestEm10 - test of transition radiation model
  • TestEm11 - illustrating energy deposition and tuning of step size and particle trajectories
  • TestEm12 - energy deposited by particles which across a given material
  • Photon Processes - compute cross sections and absorption coefficients of photon processes
  • Muon Processes - check the cross sections of high energy muon processes
  
  

• Event Biasing

• Event Generator

  • HepMCEx01 - simplified collider detector using HepMC interface and stacking
  • HepMCEx02 - connecting primary particles in Geant4 with various event generators using the HepMC interface
  • exgps - illustrating the usage of the G4GeneralParticleSource utility
  
  

• Fields

  • BlineTracer - tracing and visualizing magnetic field lines
  • field01 - tracking using magnetic field and field-dependent processes
  • field02 - tracking using electric field and field-dependent processes
  • field03 - tracking in a magnetic field where field associated with selected logical volumes varies
  
  

• Geant3 to Geant4

  - converting simple geometries in Geant3.21 to their Geant4 equivalents
  
  

• Geometry Definition Markup Language

  - illustrating import and export of a detector geometry with GDML
  
  

• Geometry

  • OLAP - debugging tool for overlapping geometries
  
  

• Medical Applications

  • DICOM - geometry set-up using the Geant4 interface to the DICOM image format
  • GammaTherapy - gamma radiation field formation in water phantom by electron beam hitting different targets
  
  

• Optical Photons

  • LXe - optical photons in a liquid xenon scintillator
  
  

• Parallel Computing

  • ExDiane - example of a medical application run in a distributed environment using the DIANE framework
  • ParGeant4 - set of examples derived from 'novice' using parallelism at event level with the TopC application
  
  

• Persistency

  • PersEx01 - storing calorimeter hits using Root-I/O
  • rootio - example Root-I/O library module

• Radioactive Decay

  - decays of radioactive isotopes as well as induced radioactivity resulted from nuclear interactions
  
  

• Run & Event

  • RE01

    - information between primary particles and hits and usage of user-information classes

  • RE02

    - simplified fixed target application for demonstration of primitive scorers
  
  

• Visualization

  • Examples of customisation for visualization