Geant4 extended examples serve three purposes: testing and validation of processes and tracking, demonstration of Geant4 tools, and extending the functionality of Geant4. The code for these examples is maintained as part of the categories to which they belong. Links to descriptions of the examples are listed below. A01 - hit-scoring and histogramming using the AIDA interface AnaEx01 - histogram and tuple manipulations using an AIDA compliant system N03Con - modified novice example N03 showing how to use a Convergence Tester TestEm0 - how to print cross-sections and stopping power used in input by the standard EM package TestEm1 - how to count processes, activate/inactivate them and survey the range of charged particles. How to define a maximum step size TestEm2 - shower development in an homogeneous material : longitudinal and lateral profiles TestEm3 - shower development in a sampling calorimeter : collect energy deposited, survey energy flow and print stopping power TestEm4 - 9 MeV point like photon source: plot spectrum of energy deposited in a single media TestEm5 - how to study transmission, absorption and reflection of particles through a single, thin or thick, layer. TestEm6 - physics list for rare, high energy, electromagnetic processes: gamma conversion and e+ annihilation into pair of muons TestEm7 - how to produce a Bragg curve in water phantom. How to compute 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 - XTR transition radiation model, investigation of ionisation in thin absorbers TestEm11 - how to plot a depth dose profile in a rectangular box TestEm12 - how to plot a depth dose profile in spherical geometry : point like source TestEm13 - how to compute cross sections of EM processes from rate of transmission coefficient TestEm14 - how to compute cross sections of EM processes from direct evaluation of the mean-free path. How to plot final state TestEm15 - compute and plot final state of Multiple Scattering as an isolated process TestEm16 - simulation of synchrotron radiation TestEm17 - check the cross sections of high energy muon processes TestEm18 - energy lost by a charged particle in a single layer, due to ionization and bremsstrahlung Check basic quantities Total cross sections, mean free paths ... Em0, Em13, Em14 Stopping power, particle range ... Em0, Em1, Em5, Em11, Em12 Final state : energy spectra, angular distributions Em14 Energy loss fluctuations Em18 Multiple Coulomb scattering as an isolated mechanism Em15 as a result of particle transport Em5 More global verifications Single layer: transmission, absorption, reflexion Em5 Bragg curve, tallies Em7 Depth dose distribution Em11, Em12 Shower shapes, Moliere radius Em2 Sampling calorimeters, energy flow Em3 Crystal calorimeters Em9 Other specialized programs High energy muon physics Em17 Other rare, high energy processes Em6 Synchrotron radiation Em16 Transition radiation Em8 Photo-absorption-ionization model Em10 Geant4E - error propagation utility Variance Reduction - examples on variance reduction techniques and scoring and application of Reverse MonteCarlo in Geant4 Reverse MonteCarlo HepMCEx01 - simplified collider detector using HepMC interface and stacking HepMCEx02 - connecting primary particles in Geant4 with various event generators using the HepMC interface MCTruth - demonstrating a mechanism for Monte Carlo truth handling using HepMC as the event record exgps - illustrating the usage of the G4GeneralParticleSource utility exgps - illustrating the usage of Pythia as Monte Carlo event generator, interfaced with Geant4, and showing how to implement an external decayer Monopole - illustrating how to measure energy deposition in classical magnetic monopole 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 field04 - definition of overlapping fields either magnetic, electric or both field05 - demonstration of "spin-frozen" condition, how to cancel the muon g-2 precession by applying an electric field General ReadMe - converting simple geometries in Geant3.21 to their Geant4 equivalents ReadMe OLAP - debugging tool for overlapping geometries Hadr00 - example demonstrating the usage of G4PhysListFactory to build physics lists and usage of G4HadronicProcessStore to access the cross sections Hadr01 - example based on the application IION developed for simulation of proton or ion beam interaction with a water target. Different aspects of beam target interaction are included DICOM - geometry set-up using the Geant4 interface to the DICOM image format electronScattering - benchmark on electron scattering GammaTherapy - gamma radiation field formation in water phantom by electron beam hitting different targets fanoCavity - dose deposition in an ionization chamber by a monoenergetic photon beam fanoCavity2 - dose deposition in an ionization chamber by an extended one-dimensional monoenergetic electron source General ReadMe LXe - optical photons in a liquid xenon scintillator WLS - application simulating the propagation of photons inside a Wave Length Shifting (WLS) fiber General ReadMe ExDiane - example of a medical application run in a distributed environment using the DIANE framework MPI - interface and examples of applications parallelized with different MPI compliant libraries, such as LAM/MPI, MPICH2, OpenMPI, etc. ParGeant4 - set of examples (ParN02 and ParN04) derived from novice using parallelism at event level with the TopC application Gflash - Demonstrates the use of the GFLASH parameterisation library. It uses the GFLASH equations(hep-ex/0001020, Grindhammer & Peters) to parametrise electromagnetic showers in matter General ReadMe GDML - examples set illustrating import and export of a detector geometry with GDML, and how to extend the GDML schema P01 - storing calorimeter hits using reflection mechanism with Root P02 - storing detector description using reflection mechanism with Root P03 - illustrating import and export of a detector geometry using ASCII text description and syntax Pol01 - interaction of polarized beam (e.g. circularly polarized photons) with polarized target Exrdm - decays of radioactive isotopes as well as induced radioactivity resulted from nuclear interactions RE01 - information between primary particles and hits and usage of user-information classes RE02 - simplified fixed target application for demonstration of primitive scorers RE03 - use of UI-command based scoring; showing how to create parallel world(s) for defining scoring mesh(es) Examples of customisation for visualization