geant4/ReleaseNotes/Patch4.9.5-1.txt

                 Geant4 9.5 - patch-01 Release Notes
                 -----------------------------------

                                                              20 March 2012

List of fixes included in this public patch since the public release 9.5:

  o Analysis:
    --------
    + Added missing header inclusion in tools/wroot/file to allow for
      compilation on gcc-4.7 and fixed minor compilation warnings.

  o Configuration:
    -------------
    + CMake scripts:
      o Corrected settings for expansion variable for prepending path to
        G4WORKDIR. Addressing problem report #1265.
      o Added function to create dictionaries.
      o Corrected setup and compilation options for Intel/icc compiler.
      o Fixed symbols filtering for Windows 64-bits.
    + Moved basic "-lm -lstdc++" link options in LOADLIBS within platform
      specific configuration scripts. Avoid using "-lm" on Linux-icc platform.
    + Corrected debug compilation option in WIN32-VC, to use -MDd instead
      of -MD. Increased stack size of executable to 12Mb.
    + Corrected condition for determining QT_AS_FRAMEWORK flag depending on
      how QTHOME is defined in Darwin setups. Addresses problem report #1267.
    + Removed unnecessary 'gcov' linkage for dynamic libs in Darwin-g++.gmk.
    + Added Darwin-clang experimental configuration. Requires explicit addition
      of -lstdc++ to LDLIBS in architecture.gmk.

  o Error Propagation:
    -----------------
    + Set navigator to stepping manager and field locators; fixing crash
      on Windows. Fixed minor Coverity defects.

  o Event:
    -----
    + Corrected settings of 'sigmaX' and 'sigmaY' in G4SPSPosDistribution
      SetBeamSigmaInR(). Addressing problem report #1278.
    + Added dummy copy constructor and operator=() to G4Event.
      Addressing problem report #1277.
    + Corrected location of G4Exception in G4UserEventAction constructor.

  o G3toG4:
    ------
    + Fixed minor Coverity defects.

  o Geometry:
    --------
    + magnetic_field:
      o G4Mag_UsualEqRhs: in SetChargeMomentumMass() method, fixed problem
        with division by zero.
      o Simplified implementation of constructors.
    + navigation:
      o Corrected redundant condition in G4PropagatorInField.
        Revised threshold for decreaseFactor=0.5 from 100 to 30 times
        the zero-step threshold.
      o G4MultiNavigator: fix for dealing with cases of clashing normals and
        return Invalid normal. Replaced FatalException with Warning, issued
        only if fVerbose > 2.
      o Fixed left over debug flags for field check in locator classes.
        Some code cleanup.
    + solids/specific:
      o Fix in G4EllipticalCone in DistanceToIn(p,v) to exclude imaginary
        solution (virtual cone) when distance is calculated.
      o Fixed trivial Coverity defects in G4TwistedTubs and G4VTwistedFaceted
        for missing protection against self-assignment.

  o Global:
    ------
    + Corrected cases of variables never read in G4ConvergenceTester and
      G4DataInterpolation.
    + Updated date and version for 9.5.p01.

  o Materials:
    ---------
    + G4MaterialPropertiesTable: cosmetic changes to GetProperty(),
      GetConstProperty() and ConstPropertyExists() methods.
    + Fixed compilation warnings on Ubuntu.

  o Persistency:
    -----------
    + Added correction in G4tbgVolume in 'ascii' module for treatment of
      G4TessellatedSolid vertex type. Addressing problem report #1270.
    + Corrected initialization of material properties in G4GDMLReadMaterials.
    + Fixed minor Coverity defects in 'mctruth' module.

  o Electromagnetic Processes:
    -------------------------
    + Low Energy:
      o Fixed defects reported by the Coverity analysis for Penelope-related
        classes.
    + Muons:
      o Fixed initialisation of transport cross-section in
        G4EnergyLossForExtrapolator.
    + Standard:
      o G4UrbanMscModel92, G4UrbanMscModel93, G4UrbanMscModel95: added
        protection against big scattering angles for e+- (E > 20 MeV); the
        protection cuts tail of scattering angles to avoid artificial
        scattering of high energy e+-; in the case of E > 1 GeV and
        cosTheta<0 a warning is now printed out.
      o G4UniversalFluctuation: fixed sampling at small steps (below 10 um) in
        heavy media about shift in range of 3 MeV muons.
        Improved parameterisation for thin gas layers.
      o G4WentzeVIModel: fixed bug in computation of lateral displacement.
        Following report #1114 in HyperNews forum.
        Improved algorithm of sampling of scattering angle and displacement:
        choice between 1 or 2 sub-steps. Added G4Exception to identify misuse
        of transport cross-section computation.
      o G4WentzelOKandVIxSection: fixed incorrect selection of limit
        on minimal angle (affect large angle scattering of muons).
        Different screening functions for e+- and heavy particles.
      o G4IonCoulombScatteringModel: fixed numerical problem for small
        scattering angles.
      o G4GoudsmitSaundersonTable, G4GoudsmitSaundersonMscModel: fixed
        compilation warnings on Ubuntu.
    + Utils:
      o G4VEnergyLossProcess fixed crash due to apply G4hIonisation for ions;
        fixed computation of delta-electron cross section for ions and very
        small cuts (about 1 um).
      o G4VEnergyLossProcess, G4VEmProcess, G4LossTableBuilder: delete old
        G4PhysicsVectors if new vectors are built between runs.

  o Hadronic Processes:
    ------------------
    + models/CHIPS:
      o G4QCaptureAtRest: added check on 4-momentum balance for violations
        of more than 2 GeV; repeat sampling again. Check baryon number of
        final state and take into account nuclear recoil at rest which is
        not produced as a final particle.
    + models/coherent_elastic:
      o Fixed Coverity defect in G4AntiNuclElastic.
      o Fixed printout of units in G4HadronElastic.
    + models/lend:
      o Fixed compilation warnings on Ubuntu; cleanup of header files inclusion.
    + models/neutron_hp:
      o Added protection against emission of unphysical ultra-low energy
        photons in G4NeutronHPCaptureFS.
      o Fixed warning message in G4NeutronHPInelastic.
    + processes:
      o Fixes in G4WHadronElasticProcess to remove unnecessary calls
        responsible for run-time memory growth.
        Addressing problem report #1286.

  o Generic Processes:
    -----------------
    + Cuts:
      o Fixed defects reported by Coverity in G4ProductionCutsTable
        RetrieveCutsInfo().
    + Optical:
      o G4OpBoundaryProcess: call ProposeVelocity() for particle-change at
        every invocation of DoIt(); for Fresnel refraction calculate final
        velocity locally. Addressing problem report #1275.
    + Scoring:
      o Bug fix G4ParallelWorldProcess for incorrect initialization for
        secondary tracks.

  o Run:
    ---
    + Fixed Coverity defects in assignment operator of G4VModularPhysicsList.

  o Track:
    -----
    + Fix in G4Track::CalculateVelocityForOpticalPhoton(), according
      to modification in G4OpBoundaryProcess, to address problem report #1275.
    + Set 'false' to 'SecondaryWeightByProcess' as default.
      Addressing problem report #1273.
    + Fix to reset 'RestMass' in G4FieldTrackUpdator::Update() method
      as it is used to initialise each track by ParallelWorldScoringProcess.
    + Fixed Coverity defects related to copy constructor and assignment
      operator.

  o Tracking:
    --------
    + Remove not defined method GetNavigator() and moved SetNavigator()
      to public in G4SteppingManager.

  o Visualization:
    -------------
    + Management:
      o Removed unwarranted DrawView() in G4VisManager::EndOfEvent().
        It was causing two copies of the geometry to be drawn.
      o Fixed size of "screen-size" markers in G4VSceneHandler::GetMarkerSize().
      o In /vis/scene/notifyHandlers, downgraded "scene has changed"
        from WARNING to NOTE.
    + Modeling:
      o Activate search also in parallel worlds in method
        G4PhysicalVolumeModel::Validate().
      o G4AttributeFilterT<T>::AddInterval() and AddValue(): relaxed
        exception in case of already existing interval/value.
    + RayTracer:
      o Fix for up-vector, addressing problem report #1274.
      o Other small fixes.

  o Examples:
    --------
    + Updated reference outputs.
    + advanced/air_shower:
      o Fixed compilation warnings on gcc-4.6.
    + advanced/xray_fluorescence
      o Fixed induced memory corruption problem in XrayFluoNistMaterials,
        only intermittently visible on MacOSX.
    + basic/B4
      o Fixed compiler warning on Windows.
    + extended/hadronic/Hadr00
      o HistoManager: use material pointer in the interface to cross-
        sections (fixes crash for Physics Lists with HP).
    + extended/hadronic/Hadr01
      o DetectorMessenger: fixed deletion of objects.
    + extended/hadronic/Hadr02
      o Fixed missing line of code in G4DPMJET2_5CrossSection.
    + extended/runAndEvent/RE02
      o Fixed indexing scheme of CopyNo() method in the RunAction.
    + novice/N02
    + novice/N03
      o Modified SteppingVerbose to correctly treat 'OutOfWorld' case.

 ----------------------------------------------------------------------------

                             Technical Notes
                             --------------- 

  o  This patch should be applied on top of release 9.5.
  o  Technical notes distributed for release 9.5 are also applicable and
     valid for this patch.

The code and rebuilt binary libraries for release 9.5.p01 are available
through our "Download" Web page:
   http://cern.ch/geant4/support/download.shtml

Please refer to the Geant4 User Documentation:
   http://cern.ch/geant4/support/userdocuments.shtml
for further information about using Geant4.