Gabriele Cosmo
126 lines
5.8 KiB
Plaintext
126 lines
5.8 KiB
Plaintext
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Geant4 8.3 - patch-02 Release Notes
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-----------------------------------
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25 January 2008
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List of fixes included in this public patch since the public release 8.3.p01:
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o Event:
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-----
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+ G4ParticleGun:
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o Added class member 'particle_momentum' and method
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SetParticleMomentum().
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o Added private copy constructor and =, ==, += operators to
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Addressing problem report #984.
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+ Modified G4SPSEneDistribution to adress problem report #988.
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+ Fix to normalisation of source intensities with multiple sources
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in G4GeneralParticleSource::IntensityNormalization().
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o Geometry:
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--------
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+ management:
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o Fixed typo in forcing minimum number of points in method
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G4VSolid::EstimateSurfaceArea(). Addresses problem report #981.
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o Added dummy constructor and destructor to G4VPVParameterisation.
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+ navigation:
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o G4PropagatorInField:
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- Fixes for compilation of code under G4DEBUG_FIELD
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(problem report #982).
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- Changed condition for 'ReEstimationEndPoint' in order to better
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handle very strict parameters of propagation. Also added more
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verbosity in case of error for negative step.
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Fixes rare problem observed in production by ATLAS.
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+ solids/Boolean:
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o Boosted performance for response of Inside() for G4SubtractionSolid
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and G4UnionSolid according to suggestion in problem report #979.
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+ solids/BREPS:
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o Fixed bug in G4BREPSolidPolyhedra::DistanceToOut() for cases of
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particle passing the border of two touching surfaces.
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o G4BREPSolidBox: fixed problem in the constructor in definition of
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the side for the normal to surface.
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+ solids/CSG:
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o G4Torus:
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- Fixed bug in CalculateExtent() for case of non-rotated full-Phi
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torus definition: added protection against negative value for sqrt()
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and corrected formula for 'delta'.
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Fixes problem of NaN detected in initialisation by CMS.
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- Fixed bug in SolveNumericJT(): corrected handling of complex roots.
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Addresses problem report #969.
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o G4Tubs: fixed bug in DistanceToOut(p,v,..) for negative value under
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sqrt() for the case of point p on the surface and v tangent to the
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surface. Responsible for rare cases of NaN.
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o Fixed problem of undefined side for valid surface normal in case of
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'Phi' section and direction through the center of either a G4Tubs or
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G4Cons shape.
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+ solids/specific:
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o G4EllipticalCone:
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- DistanceToIn(p): corrected answer for p.z()<-zTopCut and for the
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point p on the surface.
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- DistanceToOut(p,v): now returning positive solution or zero when
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crossing the elliptical surface.
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- Fix in DistanceToOut(p) which was giving always zero.
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- Corrected visualisation error of solid in graphics_reps.
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- Added some formulas on how to pre-calculate 'SemiAxis' and 'zheight'.
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o Fixed dummy constructors of G4Polycone and G4PolyPhiFace for
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initialisation of 'edges' and 'corners'.
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o G4PolyconeSide: added workaround to initialisation of 'corners'
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vector, to allow for object persistency with Root-I/O.
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o Removed debug printout in G4Polycone::GetPointOnCone().
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o Global:
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------
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+ Changed date for patch-02 to release 8.3.
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o Hadronic Processes:
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------------------
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+ management:
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o G4HadronicProcess:
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- Fix in FillTotalResult() addressing problem report #967, replaced
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call to 'aT.GetGlobalTime()' with an internal variable.
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Use different G4DynamicParticle constructor and do not allow kinetic
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energy to be exactly 0. This partly removes a spurious peak at
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90 degrees.
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o Fixed memory leak with deletion of 'theIsoResult' and
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'theCrossSectionDataStore' in destructor.
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o Changed default for isotope production to off. Fixes a memory leak.
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o Removed effective charge calculation and unused variable 'newWeight'.
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+ models/chiral_inv_phase_space:
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o Fixed problem of non-reproducibility induced by G4QElasticCrossSection
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and G4StringChipsInterface.
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o Reduced memory allocation induced by use std::deque collection in
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G4QHadron class; temporary workaround by replacing it with std::list.
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+ models/high_energy:
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o G4HEInelastic::TuningOfHighEnergyCascading(): fixed incorrect
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assignment of leading particle to low energy backward nucleons and
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fragments. This bug caused high energy backward particles to be
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emitted from high energy collisions.
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o G4HEPionMinusInelastic: fixed incorrect 'Imax' in sampling of charge
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exchange.
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+ stopping:
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o G4StopElementSelector: fixed typo in Primakoff formula for
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capture velocity.
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o G4MuonMinusCaptureAtRest: fixed old memory leak.
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o Removed old-style copyright from all headers and fixed Software
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Reference Manual tags.
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o Fixed signature of G4MuMinusCaptureCascade::DoCascade() expecting
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'const' as arguments for A and Z. Resolves linking problems on SUN-CC.
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----------------------------------------------------------------------------
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Technical Notes
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---------------
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o This patch should be applied on top of release 8.3
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o Technical notes distributed for release 8.3 are also applicable and
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valid for this patch.
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The code and rebuilt binary libraries for release 8.3 are available
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through our "Archive of Previous Releases" Web page:
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http://cern.ch/geant4/support/source_archive.shtml
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Please refer to the Geant4 User Documentation:
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http://cern.ch/geant4/support/userdocuments.shtml
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for further information about using Geant4.
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