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| 2 | Geant4 8.3 - patch-02 Release Notes
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| 3 | -----------------------------------
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| 4 |
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| 5 | 25 January 2008
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| 6 |
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| 7 | List of fixes included in this public patch since the public release 8.3.p01:
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| 8 |
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| 9 | o Event:
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| 10 | -----
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| 11 | + G4ParticleGun:
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| 12 | o Added class member 'particle_momentum' and method
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| 13 | SetParticleMomentum().
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| 14 | o Added private copy constructor and =, ==, += operators to
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| 15 | Addressing problem report #984.
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| 16 | + Modified G4SPSEneDistribution to adress problem report #988.
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| 17 | + Fix to normalisation of source intensities with multiple sources
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| 18 | in G4GeneralParticleSource::IntensityNormalization().
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| 19 |
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| 20 | o Geometry:
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| 21 | --------
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| 22 | + management:
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| 23 | o Fixed typo in forcing minimum number of points in method
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| 24 | G4VSolid::EstimateSurfaceArea(). Addresses problem report #981.
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| 25 | o Added dummy constructor and destructor to G4VPVParameterisation.
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| 26 | + navigation:
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| 27 | o G4PropagatorInField:
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| 28 | - Fixes for compilation of code under G4DEBUG_FIELD
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| 29 | (problem report #982).
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| 30 | - Changed condition for 'ReEstimationEndPoint' in order to better
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| 31 | handle very strict parameters of propagation. Also added more
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| 32 | verbosity in case of error for negative step.
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| 33 | Fixes rare problem observed in production by ATLAS.
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| 34 | + solids/Boolean:
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| 35 | o Boosted performance for response of Inside() for G4SubtractionSolid
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| 36 | and G4UnionSolid according to suggestion in problem report #979.
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| 37 | + solids/BREPS:
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| 38 | o Fixed bug in G4BREPSolidPolyhedra::DistanceToOut() for cases of
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| 39 | particle passing the border of two touching surfaces.
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| 40 | o G4BREPSolidBox: fixed problem in the constructor in definition of
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| 41 | the side for the normal to surface.
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| 42 | + solids/CSG:
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| 43 | o G4Torus:
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| 44 | - Fixed bug in CalculateExtent() for case of non-rotated full-Phi
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| 45 | torus definition: added protection against negative value for sqrt()
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| 46 | and corrected formula for 'delta'.
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| 47 | Fixes problem of NaN detected in initialisation by CMS.
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| 48 | - Fixed bug in SolveNumericJT(): corrected handling of complex roots.
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| 49 | Addresses problem report #969.
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| 50 | o G4Tubs: fixed bug in DistanceToOut(p,v,..) for negative value under
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| 51 | sqrt() for the case of point p on the surface and v tangent to the
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| 52 | surface. Responsible for rare cases of NaN.
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| 53 | o Fixed problem of undefined side for valid surface normal in case of
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| 54 | 'Phi' section and direction through the center of either a G4Tubs or
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| 55 | G4Cons shape.
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| 56 | + solids/specific:
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| 57 | o G4EllipticalCone:
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| 58 | - DistanceToIn(p): corrected answer for p.z()<-zTopCut and for the
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| 59 | point p on the surface.
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| 60 | - DistanceToOut(p,v): now returning positive solution or zero when
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| 61 | crossing the elliptical surface.
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| 62 | - Fix in DistanceToOut(p) which was giving always zero.
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| 63 | - Corrected visualisation error of solid in graphics_reps.
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| 64 | - Added some formulas on how to pre-calculate 'SemiAxis' and 'zheight'.
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| 65 | o Fixed dummy constructors of G4Polycone and G4PolyPhiFace for
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| 66 | initialisation of 'edges' and 'corners'.
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| 67 | o G4PolyconeSide: added workaround to initialisation of 'corners'
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| 68 | vector, to allow for object persistency with Root-I/O.
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| 69 | o Removed debug printout in G4Polycone::GetPointOnCone().
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| 70 |
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| 71 | o Global:
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| 72 | ------
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| 73 | + Changed date for patch-02 to release 8.3.
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| 74 |
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| 75 | o Hadronic Processes:
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| 76 | ------------------
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| 77 | + management:
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| 78 | o G4HadronicProcess:
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| 79 | - Fix in FillTotalResult() addressing problem report #967, replaced
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| 80 | call to 'aT.GetGlobalTime()' with an internal variable.
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| 81 | Use different G4DynamicParticle constructor and do not allow kinetic
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| 82 | energy to be exactly 0. This partly removes a spurious peak at
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| 83 | 90 degrees.
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| 84 | o Fixed memory leak with deletion of 'theIsoResult' and
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| 85 | 'theCrossSectionDataStore' in destructor.
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| 86 | o Changed default for isotope production to off. Fixes a memory leak.
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| 87 | o Removed effective charge calculation and unused variable 'newWeight'.
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| 88 | + models/chiral_inv_phase_space:
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| 89 | o Fixed problem of non-reproducibility induced by G4QElasticCrossSection
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| 90 | and G4StringChipsInterface.
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| 91 | o Reduced memory allocation induced by use std::deque collection in
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| 92 | G4QHadron class; temporary workaround by replacing it with std::list.
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| 93 | + models/high_energy:
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| 94 | o G4HEInelastic::TuningOfHighEnergyCascading(): fixed incorrect
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| 95 | assignment of leading particle to low energy backward nucleons and
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| 96 | fragments. This bug caused high energy backward particles to be
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| 97 | emitted from high energy collisions.
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| 98 | o G4HEPionMinusInelastic: fixed incorrect 'Imax' in sampling of charge
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| 99 | exchange.
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| 100 | + stopping:
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| 101 | o G4StopElementSelector: fixed typo in Primakoff formula for
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| 102 | capture velocity.
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| 103 | o G4MuonMinusCaptureAtRest: fixed old memory leak.
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| 104 | o Removed old-style copyright from all headers and fixed Software
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| 105 | Reference Manual tags.
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| 106 | o Fixed signature of G4MuMinusCaptureCascade::DoCascade() expecting
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| 107 | 'const' as arguments for A and Z. Resolves linking problems on SUN-CC.
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| 108 |
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| 109 |
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| 110 | ----------------------------------------------------------------------------
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| 111 |
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| 112 | Technical Notes
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| 113 | ---------------
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| 114 |
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| 115 | o This patch should be applied on top of release 8.3
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| 116 | o Technical notes distributed for release 8.3 are also applicable and
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| 117 | valid for this patch.
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| 118 |
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| 119 | The code and rebuilt binary libraries for release 8.3 are available
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| 120 | through our "Archive of Previous Releases" Web page:
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| 121 | http://cern.ch/geant4/support/source_archive.shtml
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| 122 |
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| 123 | Please refer to the Geant4 User Documentation:
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| 124 | http://cern.ch/geant4/support/userdocuments.shtml
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| 125 | for further information about using Geant4.
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