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| 1 | + |
| 2 | + Geant4 10.4 - patch-02 Release Notes |
| 3 | + ------------------------------------ |
| 4 | + |
| 5 | + 25 May 2018 |
| 6 | + |
| 7 | +List of fixes included in this public patch since the public release 10.4.p01: |
| 8 | + |
| 9 | + o Configuration: |
| 10 | + ------------- |
| 11 | + + CMake: |
| 12 | + o Updated to data-set G4RealSurface-2.1.1. |
| 13 | + Addressing problem report #2043. |
| 14 | + + GNUMake: |
| 15 | + o architecture.gmk: corrected default path for external expat and zlib. |
| 16 | + o Darwing-clang.gmk: removed -pthread and -fPIC compilation options. |
| 17 | + o WIN32-VC.gmk: updated obsolete configuration for Qt5. |
| 18 | + |
| 19 | + o Event: |
| 20 | + ----- |
| 21 | + o Use G4TrackStack as default and make use of G4SmartTrackStack optional. |
| 22 | + Addressing problem report #2040. |
| 23 | + |
| 24 | + o Externals: |
| 25 | + --------- |
| 26 | + + Corrected GNUmakefile on Windows. |
| 27 | + |
| 28 | + o Geometry: |
| 29 | + -------- |
| 30 | + + navigation: |
| 31 | + o G4PathFinder: in DoNextLinearStep(), use flag for relocated point to |
| 32 | + signal move from call to ReLocate(), and ensure that new point is used |
| 33 | + in cross-checks in subsequent Locate(). |
| 34 | + Fix to revert change previously introduced in release 10.4, to keep |
| 35 | + fMinStep as 'logical' value, which can be kInfinity when step is not |
| 36 | + limited by Navigators. Resolves warnings issued by G4PathFinder for |
| 37 | + inaccuracies in relocation. Addressing problem report #2033. |
| 38 | + o G4Navigator::GetLocalExitNormal(): fix for normal calculated at the |
| 39 | + endpoint of current step, on a 'candidate' next volume. Adds missing |
| 40 | + transformation to the frame of the current volume. |
| 41 | + Addresses problem report #2054. |
| 42 | + o G4Navigator: fix in Set/RestoreSavedState() for setting of |
| 43 | + ReplicaNumber. |
| 44 | + o G4SafetyHelper: do not limit memorisation of safety in case of parallel |
| 45 | + geometries (when a length is not passed to safety method). |
| 46 | + Fix to include full message in Exception. |
| 47 | + + solids/Boolean: |
| 48 | + o G4BooleanSolid: enhanced warning message for the case of an invalid |
| 49 | + (NULL) Boolean construct in GetPointOnSurface() and StackPolyhedron(). |
| 50 | + Use -1 instead of 0 as default initialisation value for area and |
| 51 | + capacity, so to distinguish cases when values are zero referring to |
| 52 | + NULL Boolean constructs. |
| 53 | + o G4UnionSolid: define simple bounding-box and make use of early returns |
| 54 | + in Inside() for points laying outside. |
| 55 | + o Improved contruction of G4DiplacedSolid to combine transformations for |
| 56 | + nested displaced types. |
| 57 | + o Replaced USOLIDS_LIBRARIES with VECGEOM_LIBRARIES in sources.cmake. |
| 58 | + + solids/CSG: |
| 59 | + o G4Box: simplified and optimised calculation of normal in method |
| 60 | + DistanceToOut(p,v,..). |
| 61 | + o Replaced USOLIDS_LIBRARIES with VECGEOM_LIBRARIES in sources.cmake. |
| 62 | + + solids/specific: |
| 63 | + o Corrected conversion of input parameters to internal structure (used |
| 64 | + for caching for adoption in GDML persistency) in G4UPolycone and |
| 65 | + G4UPolyhedra wrappers. |
| 66 | + o Replaced USOLIDS_LIBRARIES with VECGEOM_LIBRARIES in sources.cmake. |
| 67 | + |
| 68 | + o Global: |
| 69 | + ------ |
| 70 | + + Updated date and version for 10.4.p02. |
| 71 | + |
| 72 | + o Interfaces: |
| 73 | + ---------- |
| 74 | + + G4UIQt: fixed bug with command guidance including HTML tags inside |
| 75 | + (<, > and &) and for "critical errors" message. |
| 76 | + |
| 77 | + o Particles: |
| 78 | + --------- |
| 79 | + + G4PhaseSpaceDecayChannel: fixed incorrect indexing in ManyBodyDecayIt(), |
| 80 | + causing incorrect setting of daughter momentum in 4-body phase-space |
| 81 | + decay. Addressing problem report #2053. |
| 82 | + |
| 83 | + o Persistency - gdml |
| 84 | + ------------------ |
| 85 | + + Protect printout of progress in reading/writing by G4VERBOSE. |
| 86 | + |
| 87 | + o Physics Lists |
| 88 | + ------------- |
| 89 | + + constructors/electromagnetic: |
| 90 | + o G4EmModelActivator: fix for Opt4 and single-scattering activation. |
| 91 | + Addressing problem report #2045. |
| 92 | + |
| 93 | + o Processes - Electromagnetic: |
| 94 | + --------------------------- |
| 95 | + + lowenergy: |
| 96 | + o G4LivermorePhotoElectricModel: fixed incorrect deletion of static |
| 97 | + members when models defined per region. Addressing problem report #2052. |
| 98 | + |
| 99 | + o Processes - Hadronic: |
| 100 | + -------------------- |
| 101 | + + models/particle_hp: |
| 102 | + o G4ParticleHPFissionFS: protect against very rare cases of division |
| 103 | + by zero. |
| 104 | + + models/radioactive_decay: |
| 105 | + o G4RadioactiveDecay: in ConvolveSourceTimeProfile(), switch from |
| 106 | + std::exp() to std::expm1() where small exp arguments are expected. |
| 107 | + This greatly reduces cancellation errors as well as the accumulated |
| 108 | + error in the variance reduction weight calculation. Although negative |
| 109 | + weights still occur, their size is reduced by about ten orders of |
| 110 | + magnitude, enough to set negative weights to zero. |
| 111 | + G4Radioactivation::ConvolveSourceTimeProfile(): same as above. |
| 112 | + Addresses problem report #1480. |
| 113 | + o Make sure last stable nuclide in decay chain is included as secondary |
| 114 | + in G4RadioactiveDecay::AddDeexcitationSpectrumForBiasMode() and in |
| 115 | + G4Radioactivation::AddDeexcitationSpectrumForBiasMode(). |
| 116 | + Addresses problem report #2024. |
| 117 | + |
| 118 | + o Run: |
| 119 | + --- |
| 120 | + + G4ExceptionHandler: added track/step/volume information when an |
| 121 | + exception happens while event is being processed. |
| 122 | + |
| 123 | + o Visualization: |
| 124 | + ------------- |
| 125 | + + modeling: |
| 126 | + o Fixed bug in calculation of mass of parallel world, protecting for |
| 127 | + the case of no material assigned. Addressing problem report #2039. |
| 128 | + + Tree: |
| 129 | + o Fixed bug in suppressed writing of repeated parameterised volumes. |
| 130 | + o Improved command guidance and advice printing. |
| 131 | + |
| 132 | + o Data sets: |
| 133 | + --------- |
| 134 | + + Patched data set for measured optical surface reflectance |
| 135 | + G4RealSurface-2.1.1: |
| 136 | + o Merged LBNL LUTs data introduced in 2.0 with the Davis LUTs. |
| 137 | + Addressing problem report #2043. |
| 138 | + |
| 139 | + o Examples: |
| 140 | + -------- |
| 141 | + + extended/optical/LXe: |
| 142 | + o Fixed header guard. Addressing problem report #2041. |
| 143 | + |
| 144 | + ---------------------------------------------------------------------------- |
| 145 | + |
| 146 | + Technical Notes |
| 147 | + --------------- |
| 148 | + |
| 149 | + o This patch should be applied on top of release 10.4 or 10.4.p01. |
| 150 | + o Technical notes distributed for release 10.4 are also applicable and |
| 151 | + valid for this patch. |
| 152 | + |
| 153 | +The code and rebuilt binary libraries for release 10.4.p02 are available |
| 154 | +through our "Download" Web page. |
| 155 | + |
| 156 | +Please refer to the Geant4 User Documentation for further information about |
| 157 | +using Geant4. |
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