Geant4 8.2 Release Notes

December 15th, 2006

The code and binary libraries for the supported systems are available through our Source Code Web page.

Please refer to the Geant4 User Documentation for further information about using Geant4.

Contents

1. Supported and Tested Platforms
2. CLHEP and AIDA
3. Items for migration of the user code
4. Known Run-Time Problems
5. Compilation Warnings
6. Known Run-Time Warnings
7. Geant4 Software License
8. Detailed list of changes and fixes

1. Supported and Tested Platforms

• SUN Solaris 5.8, C++ CC-5.5.
• Linux, gcc 3.2.3 or gcc 3.4.5.
  This configuration was tested on 32 bits architectures (Intel) and 64 bits architectures (AMD) with the Scientific Linux CERN 3 (SLC3) distribution (based on RedHat Linux Enterprise 3) and Scientific Linux CERN 4 (SLC4) distribution (based on RedHat Linux Enterprise 4). Versions of Geant4 have also been compiled successfully on other Linux distributions, like Debian, Suse or other RedHat systems.
• Windows/XP and CygWin Tools with: Visual C++ 7.1 .NET

• SUN Solaris 5.8, C++ CC-5.4 Patch 111715-02
• Linux, gcc-4.1.1
• Linux, Intel-icc 9.1
• MacOS 10.4, gcc-4.0.1
• Windows/XP and CygWin Tools with: Visual C++ 8.0 (Visual Studio 2005)

• AIX 4.3.2, xlC 6.0
• DEC V4.0, cxx C++ V6.1-027
• HP 10.20, aCC C++ B3910B A.01.23
• SGI V6.5.5, CC 7.2.1

2. CLHEP and AIDA

3. Items for migration of the user code

4. Known Run-Time Problems and Limitations

5. Compilation Warnings

6. Known Run-Time Warnings

    G4PropagateInField: Warning: Particle is looping 
    -  tracking in field will be stopped. 
       It has performed 1000 steps in Field while a maximum of 1000
       are allowed. 

7. Geant4 Software License

8. Detailed list of changes and fixes

• Configure script:
  • Updated settings for new data sets.
  • Fixed issues of caching values for paths to CLHEP and external libraries. Added setting of LD_LIBRARY_PATH in env.[c]sh generated scripts.
  • Fixed issue on MacOS for -ldlibs option to the Configure script: added .dylib search in liblist.c for list of libraries. Addressing problem report #885.
• Use variables defined at architecture level for calls to system function in scripts, to avoid ambiguity of paths in CygWin environment in Windows.
• binmake.gmk: added electromagnetic/polarisation module and new physics_lists module.

• Introduced new class G4PSCellCharge, a primitive scorer class for scoring cell charge; the cell charge is defined as the sum of deposited charge in the cell.

• Standard
  • G4MultipleScattering:
    • Set default skin=1 only for e+-, for all other particles default skin=0.
  • G4hMultipleScattering:
    • New class which by default has step limitation only near geometry boundary with FacRange=0.2; meant to be used for hadrons/ions.
  • G4UrbanMscModel:
    • Fixed initialisation in ComputeTruePathLengthLimit(), fixed stepmin=1.e-6*mm.
    • Fixed problem of genreation of NaN inside method SampleCosineTheta().
      theta0 parameter for SampleCosineTheta() is computed in a public function ComputeTheta0().
    • Adopting new approach for accessing geometrical safety, according to recent developments for parallel navigation.
    • No z sampling in ComputeGeomPathLength() by default.
    • Step limitation algorithm has been modified:
      • Minimum steplimit in 8.1: tlimitmin = max(lambda/25, 5 nanometer)
        Now: tlimitmin = max(lambda/25, 1.01*stepmin)
        where stepmin ~ lambda elastic.
      • Introduced possibility to have extreme small step(s) before boundary crossing (feature not active by default); it can be activated by setting the data member skin to a non-negative value; steplimit = stepmin, if the distance to the boundary (in the original direction) is smaller than skin*stepmin. The parameter skin is set to 1 by default.
      • The step restriction is weaker for particles with higher energy, i.e., bigger effective facrange value is used in this case; in 8.0/8.1 this scaling depended on Tkin, in the new version the scaling depends on lambda, giving smaller material dependence.
    • Angular distribution has been changed:
      • Single/plural scattering for step <= stepmin (in this case t = z + no lateral displacement).
      • Parameter theta0 has been (sligtly) modified.
      • The tail of the distribution has been modified, now the parameter describing the tail is material (i.e. Z) dependent.
  • G4CoulombScatteringModel:
    • Using inheritance from G4eCoulombScatteringModel class.
  • G4eCoulombScatteringModel:
    • Set total elastic cross section const below 1 keV.
    • Screening parameter computation is now done in inline function.
    • Set default low limit on scattering angle to zero.
    • Fixed cross section and sampling of final state.
  • G4BraggIonModel:
    • Reduced lowest energy for parameterisation to 0.25 keV.
  • G4eeToTwoGammaModel:
    • Introduced new member theGamma.
  • G4eplusAnnihilation52:
    • Added extra protection against zero energy in PostStep.
  • Added deprecation warning to all processes 52 and 71 type.
  • Included changes required for new processes/models with polarization.
• Muons
  • Added deprecation warning to all processes 52 and 71 type.
• HighEnergy
  • Added new classes G4mplIonisation and G4mplIonisationModel, implementing ionisation for a classical magnetic monopole.
  • G4hhIonisation: added maxKinEnergy class member (set to 100 TeV).
• Polarisation
  • New polarisation library for simulation of circular polarized beams of e+- and gamma, including following processes and models: e+e- annihilation, bremsstrahlung, compton scattering, ionisation and e+e- pair production.
• Utils
  • G4EnergyLossMessenger: added commands binsDEDX and binsLambda.
  • G4VEmProcess: added public function SetModel().
  • G4VEmModel: added member currentElement and protected accessors.
  • G4LossTableManager: added method GetEnergyLossProcess().
  • G4EmCalculator: added computation of smoothing factor for dedx of hadrons and ions. Changed the threshold of 1 keV to 10 keV to access low-energy ionisation.

• New data set G4EMLOW-4.1 with new Auger data.
• Bug fixes in G4FluoData class.
• Developments and fixes for atomic deexcitation.
• Cosmetics on code formatting for DNA processes.

• First implementation of flat_sampling (biasing) for multiple sources in GPS.
• Added flag in G4Event to keep the particular event object until the end of the current run. Added method to G4EventManager to control the above flag and related UI command in G4EvManMessenger.
• Corrected initialization in G4PSEneDistribution.

• Parameterisation
  • Introduced new classes to handle multiple navigation in parallel geometries (Beta release):
    • G4FastSimulationManagerProcess81: new process which will replace the current default one G4FastSimulationManagerProcess in a future release. This class can handle either navigator for tracking or for fast parameterisation.
    • G4GFSManager81: class that gathers the future code to become the default at next major release in the G4GlobalFastSimulationManager class.
  • G4FastSimulationManager: adapted to new scheme. Still has old code for backward compatibilty.
  • G4FastSimulationMessenger: new command /param/showSetup, useful to show the fast simulation setup (region, models, processes, etc...). It is only valid for geometry closed state.
  • G4GlobalFastSimulationManager: limited number of warning messages printed.
  • G4FastSimulationManagerProcess: minor bug fix.
• Scoring
  • New module with classes for handling scoring and geometrical biasing in parallel geometries using multiple navigation (Beta release). Will replace corresponding classes in transportation and digits_hits modules in future releases.
• Transportation
  • Introduced new class to handle multiple navigation in parallel geometries (Beta release):
    • G4CoupledTransportation: revised version of G4Transportation, for use in 'coupled' parallel navigation in different geometries. Likely to replace G4Transportation in future major release.
  • Added new classes G4NeutronKiller and G4NeutronKillerMessenger to allow for easy disabling simulation of unwanted neutrons; useful to improve CPU performance. Two parameters are provided: low energy threshold for neutron kinetic energy (default 0), and time limit for neutron track (default DBL_MAX); these parameters can be changed via accessors in the code or through UI commands in the provided messenger: /physics_engine/neutron/energyCut and /physics_engine/neutron/timeLimit. If a neutron track is killed no energy deposition is added to the step.

• Magnetic field
  • G4FieldTrack:
    • Implemented missing definition for GetCharge() method.
    • Corrected const qualifier for accessors in the subclass.
    • Some code cleanup.
• Management
  • Added GetSurfaceArea() method to G4VSolid for approximated computation of the surfare area of a shape.
  • Corrected deregistration and deletion of world default region, now happening through G4RunManagerKernel. Minor cleanup in the implementation of the other stores.
  • Fix in G4ReflectedSolid::CreatePolyhedron() for case of component that does not have a G4Polyhedron representation.
• Navigation
  • Introduced new classes for handling multiple geometries (Beta release):
    • G4PathFinder: class responsible of determining the correct path taking into account response from multiple navigators attached to user-defined parallel geometries. It ensures that tracking in a magnetic field sees these parallel geometries at each trial step, and that the earliest boundary limits the step.
    • G4SafetyHelper: helper class for physics processes which require knowledge of the geometrical safety, and the step size for the 'mass' geometry.
    • G4MultiNavigator: utility class for polling the navigators of several geometries to identify the next boundary.
  • G4Navigator:
    • Added inline methods EnteredDaughterVolume() and ExitedMotherVolume() to allow for verification of a point entering a daughter volume or exiting the mother volume. Moved related data members to protected.
    • Made LocateGlobalPointAndSetup() method virtual. Moved to non virtual and inline LocateGlobalPointAndUpdateTouchableHandle() method.
    • Moved fHistory data member to protected to allow for more complete subclassing.
  • G4TransportationManager:
    • Added methods to access the list of the registered worlds.
    • Added new method SetWorldForTracking() to enable change of world from the RunManager.
  • G4PropagatorInField:
    • Introduced fix in LocateIntersectionPoint(), to subdivide in case it cannot find intersection point quickly.
• Solids
  • Implemented specific computation of surface area for CSG solids and included caching mechanism for the computed value.
  • Boolean:
    • G4IntersectionSolid, G4SubtractionSolid, G4UnionSolid: fixed CreatePolyhedron() for case of component that does not have a G4Polyhedron representation.
  • Specific:
    • Implemented CreatePolyhedron() for G4Polyhedra and G4Polycone.
    • Added concrete implementation of GetSurfaceArea() in G4Tet.
• Volumes
  • Use direct rotation/translation instead of frame rotation/translation in concrete CheckOverlaps() method of G4PVPlacement and G4PVParameterised volumes.
    Fixes a problem reported for wrong transformation associated to overlap-check in displaced boolean solids, but also asymmetrical placements.

• New class G4SliceTimer with implementation derived from G4Timer for the computation of slice time intervals.
• Fixed incorrect behavior of G4StateManager, so that now it changes the state -after- asked to all the G4VStateDependent classes.
• G4UnitsTable:
  • Removed mum; um should be used instead.
  • Added ClearUnitsTable() method to G4UnitDefinition to allow for proper deallocation of units from the run-manager.
• Added signal handler for debugging FPE signals and catching NaNs in applications. Works only on Linux with gcc compiler.

• G4VisAttributes:
  • Changed GetAttValues() to CreateAttValues(). It creates an expendable copy on the heap, thus following the behaviour of CreateAttValues() in trajectories, hits, etc. This achieves consistency of behaviour and user expectation; the user is responsible for deletion after use.
  • Added time range and ForceLineSegmentsPerCircle attribute.
• G4VGraphicsScene: removed Establish/DecommissionSpecials.
• G4Visible:
  • Added fAllocatedVisAttributes to prevent memory leak.
  • Fixed copy constructor and assignment operator for deep copies.
• G4VVisManager: added FilterHit() method.
• Made G4VFilter::Accept() method const.
• New utility class G4AttHolder to hold G4AttValues and their corresponding G4AttDef map.
• G4AttCheck:
  • Added bool to the list of allowed G4AttValue value types and added Density to the list of units categories.
  • Fixes for dimensionless "Physics" attributes.
  • Added store key to printing in operator<<().
  • Improved error checking.
• G4AttDefStore: added GetStoreKey() method.
• Bug fix in HepPolyhedronEllipticalCone causing wrong visualization of G4EllipticalCone solids.

• Cross sections
  • Changed scaling of interpolated pion cross sections from Z^(2/3) to A^(3/4). Will slightly increase interpolated cross section values.
  • Use constant ion cross section above 10 GeV/A in G4IonsShenCrossSection. This extends range of validity to 1TeV/A.
  • In G4GlauberGribovCrossSection, calculating coherent elastic scattering for protons and neutrons on nuclei down to 0.3 GeV.
• High Precision Neutrons
  • New data set G4NDL-3.10, containing cross sections and models below 4eV based on thermal neutron scattering files from the evaluated nuclear data files ENDF/B-VI, Release2.
  • New cross section data files added from JENDL database. Will allow extended validity of HP neutrons up to 3 GeV in next release.
• Elastic scattering
  • New CHIPS G4QElastic process introduced. Uses improved fits to cross section data, correct kinematics. Currently to be used with proton and neutron projectiles only.
  • Extended coherent elastic scattering (G4ElasticHadrNucleusHE) down to 0.4 GeV.
    Completed review and update of the class: data tables are computed on-flight, G4ELASTICDATA data set is no longer used. The model is applicable for all nuclei, except deuteron, triton, He3, and A>238.
• Radioactive decay
  • Added capability of handling decay emission of proton or neutron for decays of He5 (alpha+n) and Li5 (alpha+p). Addressing problem report #852.
  • New updated data set: RadioactiveDecay 3.1.
• Stopping
  • Reviewed kinematics in mu-stopping (G4MuonMinusCaptureAtRest), special treatment of stopping in H and He media. Addressing problem report.
  • G4MuMinusCaptureCascade: clean up of interfaces; improved kinematics in muon decay sampling.
• Utils
  • In G4ReactionDynamics::AddBlackTrackParticles(), corrected cases of division by zero.
  • Changed text layout in G4HadronicWhiteBoard, to conform with standard G4Exception text.

• Extended G4UImanager::Loop() and /control/loop UI command to handle negative increments.

• Added methods to access vector of names of NIST elements and materials.
• Added methods GetAtomicMass(), AddIsotopeMass(), returning atom mass and nuclear mass in Geant4 units.
• Added GetTotalBindingEnergy() method to G4AtomicShells.
• Added Get/SetNaturalAbundancesFlag().

• Updated mass/width/encoding of particles to match with PDG2006:
• Introduced PDG encoding for nuclei.
• Added G4Exception warning if sum of daughter mass exceeds parent mass in G4PhaseSpaceDecayChannel.
• Modified GetMass() and GetCharge() of G4PrimaryParticle to return PDG mass and charge if users do not specify them.
• Optimized implementation of G4IonTable::IsLightIon() method.

• Protected with flag G4LIB_USE_HEPMC code which explicitly uses HepMC classes, to allow for porting to CLHEP 1.9.3.X or 2.0.3.X releases.
• Added setup for retrieving HepMC in case G4LIB_USE_HEPMC is set and the HEPMC_DIR path defined in the environment.

• Handling multiple navigation in parallel geometries (Beta release):
  • G4VUserParallelWorld: new abstract base class for the generation of the user's parallel world. The user must create the new parallel world by retrieving it from the provided GetWorld() protected method, and fill it inside through the Construct() method. The constructor takes a unique name of the parallel world, which is used to set the name of the world physical volume of the new parallel world.
  • Added mechanism for detecting presence of parallel world registered and allow for switching of transportation in G4VUserPhysicsList.
• G4Run object is now kept until the beginning of the next run, so that the user can have an access to the valid G4Run pointer during the Idle state after the run. Events can be kept un-deleted, stored in G4Run, and persist until the deletion of the G4Run objects.
• Added call to the FPE handler in constructor of G4RunManagerKernel.
• In destructor of G4RunManagerKernel, allow for proper deletion of default region and deallocation of units from the G4UnitsTable.

• Track
  • Moved G4TrackVector class from tracking module.
  • Added secondary vector to G4Step.
  • Added methods for setting polarization and modifying weight for G4ParticleChangeForGamma and G4ParticleChangeForLoss.
  • New methods IsFirst/LastStepInVolume() in G4Step, with accessors and modifiers in G4Step and G4VParticleChange.
  • Revised method UpdateStepForPostStep().
• Tracking
  • Secondary vector is now owned by G4Step and G4TrackVector class has been moved in the track module.
  • Fix in G4SteppingVerbose for ForceCondition.
  • Fixed "double-deletion" problem in the destructor of G4SteppingManager.
  • Added new method TrackBanner() in G4TrackingManager; moved all hard-coded verbosity to this method. Modified G4SteppingManager to invoke this new method.
  • Fix in G4SteppingManager for the treatment of trajectory update. Modified trajectory classes accordingly.
  • Augmented /tracking/storeTrajectory command. Now taking integer parameter:
    0 : Don't Store trajectories. !=0 : Store trajectories.
    1 : Choose G4Trajectory as default.
    2 : Choose G4SmoothTrajectory as default.
    3 : Choose G4RichTrajectory as default.
  • In all trajectories:
    • Added protection to points container pointer in destructor.
    • Made G4AttDef descriptions more concise.
    • G4RichTrajectory: bug fix, created G4AttValues for user-defined creator process.
    • G4VTrajectory: improved ShowTrajectory() implementation.

• Overall
  • Expanded previous trajectory-modeling abilities (drawByCharge, drawByParticleType, drawByOriginVolume) to now allow drawing by arbitrary attributes. Allows, for example, "color by momentum range".
    See commands such as /vis/modeling/trajectories/create/drawByAttribute
  • Expanded previous trajectory and hit filtering abilities (filterByCharge, filterByParticleType, filterByOriginVolume) to now allow filtering by arbitrary attributes. Allows, for example, filter out all trajectories from particles with momentum below a specified cutoff.
    See commands such as /vis/filtering/trajectories/create/attributeFilter
  • Added trajectory time-slicing. Makes it possible to create movies that show time-development of events. Currently supported only in OpenGL viewers.
    See detailed commands under OpenGL below.
  • Added facility for easy interactive selection of whether trajectory should be simple, rich or smooth.
    See new parameters "rich" and "smooth" in command /vis/scene/add/trajectories
  • Transients are no longer lost when you change the view or change viewers (for example from OpenGL to DAWN).
  • Implemented commands to complement the new "event keeping" facilities in the kernel. Visualization can display any event that has been specified should be kept. Event keeping is also automatically activated when there is a visualization that accumulates multiple events into one visualization, so that it is possible to later go back and visualize the individual accumulated events one at a time.
    See command /vis/reviewKeptEvents
  • Added command to clear transients from current viewer.
    See command /vis/viewer/clearTransients
  • Added ability in G4VisAttributes to force the number of line segments used to represent a circle (the given volume will use this value rather than any value set from the interactive command /vis/viewer/set/lineSegmentsPerCircle).
    Specify as G4VisAttributes::SetForceLineSegmentsPerCircle
  • Added command to control line width.
    See command /vis/viewer/set/globalLineWidthScale
  • Added ability to specify clipping/cutaway planes for the view (currently works only in OpenGL since uses OpenGL clip plane capabilities, but may eventually be extended to other viewers).
    See commands:
    /vis/viewer/addCutawayPlane
    /vis/viewer/changeCutawayPlane
    /vis/viewer/clearCutawayPlanes
  • Added command to create exploded-view.
    See command /vis/viewer/set/explodeFactor
  • Implemented visualization of parallel worlds. Commands that add volumes understand the names of the various worlds.
• OpenGL
  • Added facility to have OpenGL write to an EPS file.
    See command /vis/oglx/printEPS
  • Added ability to create movies that show time-development of events.
    Controlled by commands such as /vis/modeling/trajectories/drawByCharge-0/default/setTimeSliceInterval 0.1 ns
    and new OpenGL commands:
    /vis/ogl/set/startTime and endTime
    /vis/ogl/set/fade
    /vis/ogl/set/displayHeadTime
    /vis/ogl/set/displayLightFront
    See detailed HowTo.
    Also see Application Developers Guide, Section 8.10, Making a Movie.
• OpenInventor
  • Added ability to show attributes upon picking of solids, trajectories and hits.
• RayTracer
  • Deprecated /vis/rayTracer/backgroundColour.
    Instead use command /vis/viewer/set/background
• HepRepFile
  • Corrected handling of Hits that come via AddSolids.
  • Improved handling of trajectory points.
• ASCIITree
  • Added printing of material name.

• Python environment:
  • Added MacOSX support.
  • More exposed methods.
  • Added physics list module.
  • Added GUI examples using wxPython.
  • Implemented G4ExceptionHandler as translation to Python exceptions.
  • Removed obsolete method GetObjectRotation() from G4VPhysicalVolume wrapper.
  • Fixed namespace problem in pyG4Material.
  • Replaced SetVerbosity() method with SetVerboseLevel() in pyG4VisManager.
  • Added messenger for ExN03geom.

• Moved physics lists into source tree. Removed external tree. Simplified directory and library structure.
• Deleted two "_GN" lists which were added in release 8.1 by mistake.
• Added warning for physics lists now obsolete: LHEP: _HP, _BIC, BIC_HP, _PRECO, QGSP_HP.
• Added neutron tracking cut to QGSP and FTF lists without _HP extension.
• Added lists QGSC_EMV, QGSC_EFLOW, QGSP_BIC_HP and QGSP_QEL (i.e QGSP with CHIPS elastic).
• Fix to initialise activation flag in G4HadronQElasticPhysics constructor.
• G4HadronElasticPhysics: configure neutrons separately from other hadrons.
• G4HadronProcessStore: implemented computation of cross sections.
• Added possibility to use Glauber-Gribov cross-sections in QBBC.
• Updated versions numbers.

• New data set for low-energy electromagnetic processes: G4EMLOW 4.1:
  • Updated Auger data set.
• New data set for high-precision neutron processes: G4NDL 3.10:
  • New Thermal Scattering files:
    H in H2O. Source: H2O (thermal) from ENDF/B-VI Tape 118
    Graphite. Source: graphite thermal file from lanl for release 2
    Polyethylene. Source: Poly (thermal) from ENDF/B-VI Tape 118.
  • New JENDL_HE files:
    Elastic and Inelastic cross section from "JENDL High Energy File 2004" for H(1), C(12,13), O(16), Mg(24,25,26), Al(27), Si(28,29,30), K(39,41), Ca(40,42,43,44,46,48), Fe(54,56,57,58), Cu(63,65), Zn(64,66,67,68,70).
• New data set for radioactive decay processes: RadioactiveDecay 3.1.
• Archived data set for high energy elastic scattering processes, no longer necessary.

• Updated reference outputs.
• Modified where necessary the setup for accessing physics lists after the inclusion of Physics Lists as kernel libraries.
• advanced
  • air_shower
    • Removed invocation of Visualisation.mac in main() if argc==1.
  • brachytherapy
    • Removed /vis/scene/transientsAction none command (no longer available).
    • Physics list cleaned. The cut is fixed to a value lower than the 1 keV limit.
  • human_phantom
    • New example implementing anthropomorphic phantoms (male and female) based on MIRD/ORNL model with geometry description derived from GDML persistent files.
  • microbeam
    • Replaced G4MultipleScattering process for alphas by new G4hMultipleScattering implementation.
    • Removed obsolete vis-manager classes. Now using G4VisExecutive.
  • raredecay_calorimetry
    • Removed obsolete vis-manager classes. Now using G4VisExecutive.
• extended
  • analysis/A01
    • Removed unused attributes from hit classes.
    • Fixed limits on histogram and changed "Bookkeeping" to "Physics" in G4AttDefs.
    • Removed tracking action. Use /vis/scene/add/trajectories rich command, etc.
    • Invoke G4UIterminal(new G4UItcsh) if G4UI_USE_TCSH set.
  • Removed old PhysicsLists '52' and '71' in "electromagnetic" examples.
  • electromagnetic/TestEm0
    • Added interface to NIST materials.
    • Correction in DetectorConstruction::SetMaterial().
  • electromagnetic/TestEm3
    • Fixed names of standard EM builders.
  • electromagnetic/TestEm5
    • Added interface to NIST materials.
    • Added "standardSS" physics (single scattering instead of multiple).
    • StackingAction: more options for killSecondaries.
  • electromagnetic/TestEm7
    • Added NIST materials.
    • Fixed cout for the case when range exceeds width of the absorber.
    • Renamed standard options: "G4standard", "G4standard_fast".
    • Added Livermore and Penelope options.
  • electromagnetic/TestEm8
    • Updated DetectorConstruction and PhysListEmModelPai.
  • electromagnetic/TestEm9
    • Added PhysListEmPenelope and PhysListEmLivermore.
    • Added EM components from physics_lists subpackage and use hadronic components from physics_lists subpackage.
    • Fixed names of standard EM builders.
  • electromagnetic/TestEm11
    • Replaced G4_WATER with Water.
    • Reinstate 'hLowEnergyIonisation' in Livermore physics list.
  • electromagnetic/TestEm14
    • Compute mass_energy_transfer coefficient.
  • electromagnetic/TestEm17
    • Fix in ConstructParticles(). Addresses problem report #893.
  • eventgenerator/HepMC
    • Added new example MCTruth showing handling of MC truth information through the HepMC package.
    • Archived examples copies using CLHEP/HepMC.
    • Fixed a bug in HepMCEx01/ExN04CalorimeterSD.
    • Corrected GNUmakefiles for HepMCEx01 and HepMCEx02.
    • Migrated to use new trajectory modeling commands in vis macros.
  • gdml
    • Set schema location to LCG release area in test.gdml.
  • hadronic/Hadr01
    • Included tracking cut for neutrons.
    • Added option to define beam position by user.
    • Added PhysList and directory for histograms definition via environment variable and fixed setup for AIDA.
  • parallel/ParN04
    • Fixed bug in ExN04CalorimeterSD derived from N04 example.
  • polarisation/Pol01
    • New example for polarised EM processes.
  • runAndEvent
    • RE01: fixed bug in CalorimeterSD::ProcessHits() concerning the transformation for vector and rotation matrix of the calorimater cell of readout geometry
    • RE02: reimplemented the geometry using G4VNestedParameterization. Modified scorers accordingly.
  • visualization
    • perspective: improved command guidance.
• novice
  • N02
    • Improved vis.mac to vis best practice.
  • N03
    • Migrated to use new trajectory modeling commands:
      vis.mac: added new trajectory commands and helpful comments.
      ExN03EventActionMessenger: removed /N03/event/drawTracks command.
      ExN03EventAction: removed SetDrawFlag() and code for drawing trajectories in EndOfEventAction().
    • Added exN03Vis12.mac and exN03Vis13.mac in visTutor: demonstration of time slicing.
  • N04
    • Fixed bug in ExN04CalorimeterSD::ProcessHits() concerning the transformation vector and rotation matrix of the calorimater cell of readoout geometry.
    • Migrated to use new trajectory modeling commands in vis macros.
    • Changed attribute name Type to HitType. Added HitType attribute to all hit classes. Added hits attributes for picking.
    • Made material world and readout world top volumes invisible. and removed forcedWireframe from tracker and caloLayer.
    • Set readout geometry name.
  • N05
    • Reimplemented example to follow the new parallel geometry scheme (Beta version for parallel navigation). Added class ExN05ParallelWorldForPion and removed ghosts in DetectorConstruction.
    • Archived XXXCuts classes, as they are not of primary need.
    • Fixed bug in ExN05CalorimeterSD which was originated from example N04.
  • N06
    • Migrated to use new trajectory modeling commands in vis macros.
  • N07
    • Added timing measurement for each region and for e+/e-.