Gabriele Cosmo
547 lines
23 KiB
Plaintext
547 lines
23 KiB
Plaintext
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Geant4 5.2 Release Notes
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------------------------
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27 June 2003
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The code and some binary libraries are available through our "Source Code"
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Web page (http://cern.ch/geant4).
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Please refer to the Geant4 User Documentation
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(http://cern.ch/geant4/G4UsersDocuments/Overview/html)
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for further information about using Geant4.
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Contents
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--------
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1. Supported and Tested Platforms
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2. AIDA and CLHEP
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3. The Standard Template Library (STL)
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4. Compiler Specific Problems
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5. Known Run-Time Problems
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6. Compilation Warnings
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7. Known Run-Time Warnings
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8. Features at Run-Time
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9. Items for migration of user code
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1. Supported and Tested Platforms
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---------------------------------
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o SUN Solaris 5.8, C++ 5.4 Patch 111715-02.
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o Linux, gcc 2.95.2, gcc 3.2.
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This configuration was tested with the RedHat 7.3 distribution,
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versions of Geant4 have also been compiled successfully on other
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Linux distributions, like Debian or Suse.
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The default RedHat compiler gcc-2.96 distributed in RedHat 7.X is NOT
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supported. It has been verified that it produces incorrect binaries,
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therefore is not reliable. See also note below.
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o Windows-2000/XP and CygWin Tools with: Visual C++ 6.0 Service Pack 5
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Platforms configured but not tested and not supported:
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o DEC V4.0, cxx C++ V6.1-027
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o HP 10.20, aCC C++ B3910B A.01.23
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o SGI V6.5.5, CC 7.2.1
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o AIX 4.3.2, xlC 6.0
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o MacOS 10.2, gcc 2.95.2 / gcc-3.2
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o Windows/XP with CygWin Tools, .NET Visual Studio C++ 7
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2. AIDA and CLHEP
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-----------------
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Geant4 5.2 requires the installation of CLHEP
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(http://cern.ch/clhep/INSTALLATION/clhep.html).
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Tests have been performed with CLHEP 1.8.0.0.
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Geant4 5.2 examples with histogramming cowork with AIDA 3.0 implementations.
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These include:
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- ANAPHE and components included therein
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(see: ANAPHE - http://cern.ch/anaphe)
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- JAS (Java Analysis Studio)
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(see: JAS - http://jas.freehep.org)
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- Open Scientist
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(see: Open Scientist - http://www.lal.in2p3.fr/OpenScientist)
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AIDA headers can be downloaded from:
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http://aida.freehep.org
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3. The Standard Template Library
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--------------------------------
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Native versions of STL have been tested on the following platforms:
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Windows/2000, Linux, and SUN.
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NOTES:
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- Platform specific setup:
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o SUN: Native STL is required for ISO/ANSI setup.
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o Linux: Native STL is required (non ISO/ANSI setup for egcs compiler only).
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o Windows: Native STL and ISO/ANSI setup required.
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4. Compiler Specific Problems
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-----------------------------
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o Linux Red Hat 7.X, gcc-2.96.
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- The default compiler distributed by Red Hat since release 7.0 is
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NOT supported and not considered reliable for running a Geant4-based
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application. In more than one test case, binaries produced by gcc-2.96
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have shown incorrect behavior, either due to wrong order of
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initialisation of static data in memory or to bugs in the system
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iostream classes, problems which apparently have all been solved in
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more recent versions of the compiler (3.X series).
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For information, gcc-2.96 is a compiler that has never been
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officially released, nor supported by the GNU team itself and is not
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considered reliable by the authors (for more information, see also
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http://gcc.gnu.org/gcc-2.96.html).
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5. Known Run-Time Problems and Limitations
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------------------------------------------
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For a complete list of outstanding run-time problems and to submit any
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problem you may find running this version of Geant4, please refer to the
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Geant4 Problem Reporting System, available on the Web at this address:
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http://cern.ch/geant4/problemreport
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6. Compilation Warnings
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-----------------------
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There are compilation warnings on some platforms. We do not believe
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that any will lead to incorrect run-time behaviour, but we are working
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on reducing them.
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7. Known Run-Time Warnings
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--------------------------
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The following messages can be written to error output while tracking.
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We believe none give rise to incorrect behaviour.
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o G4PropagateInField: Warning: Particle is looping
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- tracking in field will be stopped.
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It has performed 1000 steps in Field while a maximum of 1000
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are allowed.
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8. Features at Run-Time
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-----------------------
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o In the propagation in field, the default value of "maximum step count"
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has been changed from 10000 to 1000.
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This will cause more particles to be recognised to loop earlier (see
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section 7 of these notes) as this parameter controls this behavior too.
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9. Items for migration of user code
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-----------------------------------
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o With this release, usage of the obsolete 'g4std' wrappers has been removed
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from the code and wrappers themselves are now hard-coded to STL headers.
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User code making use of these wrappers will still compile and run as
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normal, however, we encourage to migrate the user code at the earliest
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convenience.
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From the -next- public release (and development/beta releases), wrappers
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and definition of 'G4std' will be removed, therefore making the migration
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of the user code mandatory:
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- Any reference to G4std:: will have to be changed to std::
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- Any #include statement of the kind
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#include "g4std/XXX"
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will have to migrate to standard C++ calls of the kind
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#include <XXX>
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o The new data sets for low-energy EM processes G4EMLOW2.2 is required
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for applications making use of such processes.
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----------------------------------------------------------------------------
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List of changes and fixes
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-------------------------
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These are the main new features/fixes included in this release since the
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last patched public release (for the detailed list of fixes/additions,
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please refer to the related History files):
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o Configuration
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-------------
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- Made build of STEP and STEPinterface modules optional. Added flags
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G4LIB_BUILD_STEP/G4USE_STEP. By default the libraries will not be built.
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- Removed G4_HAVE_BOOL macro. Now using default 'bool' type,
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defined in all supported compilers.
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- Removed flag G4USE_STD_NAMESPACE from specific setups in sys.
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Follows migration from G4std and STL header wrappers apported in
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the whole code.
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- Removed obsolete usage of GNU_GCC specific option for g++ compilers.
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- Modified mechanism for building shared libraries to include symbols
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from external libs like OpenGL, ... so libraries will be self-contained
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concerning their dependencies.
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- Added UI32LIBS to interactivity.gmk to handle UI libraries on WIN32
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platforms and added libraries for OpenGL and UI to default setup of
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WIN32-VC and WIN32-VC7. Removed some obsolete compilation options.
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- Added more strict compiler options for warnings on Linux-g++ platform.
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- Added missing module Bertini-Cascade to list of libraries for
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compound build.
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o Digitization & Hits:
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-------------------
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Electromagnetic Processes (Low-energy):
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--------------------------------------
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- Requires a new version of the data-set: G4EMLOW2.2.
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- Improved design to allow for multiple models of Bremsstrahlung angular
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distribution; currently the model for modified Tsai is provided.
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- G4PenelopeCompton triggers atomic relaxation.
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- Removed two memory leaks in Penelope processes and design flaw in
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private interface of G4eBremsstrahlungSpectrum.
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- Fixed argument to pow() in G4LinLogLogInterpolation.cc and
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G4LogLogInterpolation.cc to allow for porting on .NET 7.1 compiler.
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Electromagnetic Processes (Standard):
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------------------------------------
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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- Short-lived particles no longer applicable for G4hIonisation and
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G4MultipleScattering.
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- STD prototype processes:
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+ Updated initialisation for STD processes: integral Bohr fluctuations.
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+ Bug fix in cross section at high energies in G4MuPairProductionSTD.
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+ Removed and replaced obsolete multiple-scattering classes with "model"
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variant.
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+ Fix in SupressionFunction of bremsstrahlung.
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+ Fix in dedx for e- ionisation for E<1keV.
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+ Removed tracking cut.
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+ Establish limits on eloss for Bohr and Ion fluctuations.
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+ Added precise range calculation.
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+ Default step parameters are now set to be as for standard processes.
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- Multiple Scattering:
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+ IMPORTANT change in the angle distribution for muons/hadrons
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the width of the central part now is corresponds to the value
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can be computed from the HighLand formula (no change of this
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kind for e+/e-) --> small change in the width for low to
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medium energy (protons - 1 MeV - few hundred MeV) but change
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up to 20 -25 % for high energy.
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+ minor correction in the angle sampling algorithm, affects
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e+/e- too --> small change for very small and very big
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stepsize/range values.
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+ Fixed misprint at Tev energies.
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+ Fix minor problem in nuclear form-factor calculations.
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- G4VXTRenergyLoss: modifications in BuildPhysicsTable.
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Angle range 0-0.3, Legendre96 integration in 0-0.3-0.6-1.0*fMaxThetaTR.
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- Set default number 120 bins for dedx table in G4eIonisation.
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- Updated PAI model: included high energy transfers.
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- Trivial fixes in G4PAIxSection on arguments to pow() for porting on
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.NET 7.1 compiler.
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o General Processes, Parameterisation, Decay, Optical:
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---------------------------------------------------
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Geometry:
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--------
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- management:
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o G4LogicalVolume:
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+ added method ClearDaughters() to be used for resetting the list of
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daughters to a logical volume in the use-case when only the physical
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volume store is cleared at run-time.
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+ notify removal of root-logical-volume from G4Region in case of
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deletion of a logical-volume from the destructor, instead that from
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DeRegister() method.
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o GVPhysicalVolume:
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+ Added pointer to mother logical volume (will replace in future
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releases the pointer to mother physical volume) and related accessors.
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+ Standardised registration mechanism as daughter for constructor using
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the pointer to the mother's PV.
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o G4PVPlacement/Replica/Parameterised:
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+ Standardised registration mechanism as daughter for constructor using
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the pointer to the mother's PV.
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o G4Region:
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+ Removed redundant calls to ScanVolumeTree() and UpdateMaterials()
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from RemoveRootLogicalVolume() method.
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o G4LogicalVolumeStore:
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+ removed redundant check and call to RemoveRootLogicalVolume() from
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Clean() method.
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o G4PhysicalVolumeStore:
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+ Added notification mechanism to logical volumes in the Clean() method
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to update the list of daughters.
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+ Update mother's LV list of daughters when deregistering a volume.
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- solids
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o Made compilation of STEP and STEPinterface modules optional
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controlled by variable G4LIB_BUILD_STEP/G4USE_STEP.
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By default modules are not built.
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o G4ReflectionFactory:
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+ Made public accessors: GetConstituentLV(), GetReflectedLV(),
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IsConstituent() and IsReflected().
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+ Added accessor GetReflectedVolumesMap() to access list of
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reflected volumes.
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+ Added methods Set/GetScalePrecision().
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o G4BREPSolidPCone:
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+ Commented out verbose-mode in SurfaceNormal(). Temporary solution
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to problem reports #425, #431 and #474.
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- verification
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o G4GeomTestVolume:
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+ Added methods TestRecursiveLine() and TestRecursiveCylinder() for
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allowing recursion on line_test and cylinder_test respectively.
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+ Introduced ability to control depth and starting level of recursion.
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- volumes
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o G4GeometryMessenger:
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+ Added new commands for controlling geometry overlaps: added recursion
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to line_test and cylinder_test; added possibility to customise the
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resolution and shape of grid/cylinder for the test; added ability to
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select depth of recursion in the geometry tree.
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+ Added explicit call to OpenGeometry() in method CheckGeometry() to
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force cleanup of voxelisation when command navigator/reset is called.
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o G4PropagatorInField:
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+ Implemented use of safety to reduce calls to navigator.
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+ Changed the default value of "maximum step count" from 10000 to 1000.
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This will cause more particles to be recognised to loop earlier as
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this parameter controls this behavior too.
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+ Added new method FindAndSetFieldManager() to find the current field
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manager and set it for the Propagator. The class currently ensures
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that this method is always called once for each call to ComputeStep().
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+ Added new method SetDetectorFieldManager(), so as to have it updated
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when the global field manager is changed.
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o G4TransportationManager:
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+ corrected the method SetFieldManager(). It now messages the current
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global PropagatorInField to notify it.
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Global:
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------
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- Define g4std wrappers and G4std to original STL headers and std
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namespace. Removed usage of G4USE_STD_NAMESPACE macro.
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- G4PhysicsVector: moved copy costructor and assignment operator to
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public. Fixes problem report #486.
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o Hadronic Processes:
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------------------
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- Cleared most compilation warnings.
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- cross_sections
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+ Design iteration.
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+ Fixed problem with electro-nuclear cross-sections.
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+ Fixed usage of arguments to pow() for porting on .NET 7.1 compiler.
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- management
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+ Added AddDataSet directly to the process interface
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+ Reimplementation of the registry to make it suitable for dynamic
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loading of libraries.
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+ Fixed warning generated after migration from g4std.
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- models/cascade/evaporation
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+ Fixed usage of arguments to pow() for porting on .NET 7.1 compiler.
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- models/chiral_inv_phase_space
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+ Fixed usage of arguments to pow() for porting on .NET 7.1 compiler.
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- models/generator/de_excitation
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+ Reimplemented Coulomb barrier in the GEM emission probabilities.
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+ Fixed floating-point exception observed in G4NuclearLevelManager.
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+ Improved mass calculation in G4VGammaDeexcitation.
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+ Introduced C++ casts.
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+ Reconfigured Fermi-break-up.
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+ Fixed case of floating-point exception in internal conversion.
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+ Fixed usage of arguments to pow() for porting on .NET 7.1 compiler.
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- models/generator/kinetic_model
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+ Improved transition between pre-equilibrium decay and binary cascade.
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+ Corrected dummy declaration of virtual function to allow porting
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on WIN32 platforms.
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- models/generator/pre_equilibrium
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+ Overall design iteration and re-implementation.
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+ Added GNASH transition probabilities as option.
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+ Added HETC emission probabilities as option.
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+ Re-work of alpha emission probabilities.
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+ Fixed compilation problem on WIN32 platforms.
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- models/generator/scattering
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+ Fixed long-standing error on SUN dealing with ordering of static
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construction.
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+ Fixed calculation of lower bound in sampling resonance masses
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for multiple resonance final states.
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- models/generator/util
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+ Extended nucleon interface to allow tracing during the cascading.
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+ Added fermi-momentum to G4Nucleon.
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+ Enabled hit-counting in G4Nucleon.
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+ Cleared printout on value of excitation energy.
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+ Fixed usage of arguments to pow() for porting on .NET 7.1 compiler.
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- models/low_energy
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+ Added re-coil creation and energy transfer calculation to elastic
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scattering
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+ Bug fix for random coincidence exception in elastic scattering.
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- models/neutron_hp
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+ Fixed usage of arguments to pow() for porting on .NET 7.1 compiler.
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- models/radiative_decay
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+ Fix in G4ITDecayChannel and G4RadioactiveDecay for porting on
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Windows .NET (WIN23-VC7) compiler: changed signature in
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constructor for G4ITDecayChannel to use G4Ions instead of generic
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G4ParticleDefinition.
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- processes
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+ Implemented the AddDataSet interface in all process classes.
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- stopping
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+ Fixed bug in alpha evaporation from nucleus observed when mu- stops
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in air.
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+ Adopt trivial workaround to avoid "internal compiler error" on WIN32
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platforms.
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o Magnetic Field:
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--------------
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- Revised G4FieldManager adding a (new) virtual method:
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ConfigureForTrack( const G4Track *)
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to enable the user to configure it with different accuracy parameters
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depending on energy, particle id, volume, or other track state.
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- Revised G4ChordFinder:
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+ FindNextChord() now provides next Step estimate (for accuracy
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in Integration)
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+ Modified AdvanceChordLimited() to use FindNextChord() and
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initial-step.
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+ Fixed missing initialisation of several member data in the simple
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constructor and fixed unitialised variable for next step.
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+ Protected assignment of fLastStepEstimate_Unconstrained in case of
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unitialised value.
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- G4MagIntegratorDriver:
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+ Took out unneccessary square roots and divisions.
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Giving 15% performance boost.
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+ Added extra argument for suggested initial step size 'hinitial'
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to Accurate Advance.
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+ Keep simple statistics on number of steps, total error and step size.
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Materials:
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---------
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- G4Isotope: fixed bug in operator=. Fixes problem report #429
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Parameterisations:
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-----------------
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Particles:
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---------
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- G4DynamicParticle.cc:
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+ Fix in constructors for the calculation of masses to avoid negative
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values result of precision loss when massless particles
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(like photons) are treated. Fixes problem report #489.
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+ Use condition m^2<0.001MeV^2 to identify massless particles.
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o Persistency:
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-----------
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Run, Events, Intercoms and Interfaces
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-------------------------------------
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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- G4UItokenNum.hh: fixed longstanding bug in the definition of the
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struct "yystype": defined operator= and copy-constructor, defined
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default constructor with default initialisation of members.
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Fixes potential usage of uninitialised values.
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- G4UIGainServer: fixed compilation problem on Darwin-g++ with gcc-3.X.
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- G4VUserPhysicsList: added check for IsShortLived() before building the
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physics table in BuildPhysicsTable().
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- G4RunManager: fixed case of removal of logical volume from default
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region, when the whole geometry setup is cleared between runs.
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o Tracking & Track:
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----------------
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- Fixed copy operator of G4Track not to copy the pointer to user
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information.
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Transportation:
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--------------
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- G4Transportation:
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o Use new method of PropagatorInField to simplify choice of
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global/local field.
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o Activated new capability of a (user derived) field manager to configure
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itself with different accuracy parameters depending on track's energy,
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particle identity, or other property.
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o Fixes to accomodate incorrect and missing functionality for the
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following use cases:
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+ setting of a local field when no global field exists.
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+ overriding of an existing global field with a 'zero' field
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by creating a local field manager that has a NULL G4Field pointer.
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o Visualization:
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-------------
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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- OpenGL
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+ Added first implementation of G4OpenGLWin32Viewer for Windows GL.
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+ Fixes for porting compilation on WIN32.
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o g3tog4 tool:
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-----------
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- Fixed compilation warnings on Linux-g++ for higher-lever diagnostics.
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o data
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----
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- New data set for low-energy EM processes: G4EMLOWEN2.2.
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o Examples:
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--------
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- Updated reference outputs.
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- Cleared most compilation warnings.
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- advanced:
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o brachytherapy
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+ Implementation revision.
|
|
o composite_calorimeter
|
|
+ Updated physics lists.
|
|
o gammaray_telescope
|
|
+ Updated to ANAPHE 5.0.5 and cuts-by-region.
|
|
o lAr_calorimeter
|
|
+ Updated physics lists.
|
|
o Rich
|
|
+ New application simulating the TestBeam setup of the Rich
|
|
detector in LHCb.
|
|
o Tiara
|
|
+ New application implementing a simulation of the neutron
|
|
shielding experiment TIARA using importance biasing.
|
|
o underground_physics
|
|
+ Fixes to physics list.
|
|
+ Added HepRep visualization.
|
|
+ Fixes to hits collection: fixed hits deposition on photocathode
|
|
material.
|
|
o xray_fluorescence
|
|
+ Bug fixes for energy deposition in the detector.
|
|
- extended:
|
|
o analysis
|
|
+ A01
|
|
o Updated AIDA scripts.
|
|
+ AnaEx01
|
|
o Updated to AIDA 3.0.
|
|
o biasing
|
|
+ Implementation revision.
|
|
o electromagnetic
|
|
+ TestEm1, TestEm2, TestEm3
|
|
o Corrected deletion of volumes/solids when geometry is updated.
|
|
+ TestEm4
|
|
o
|
|
+ TestEm5
|
|
o New histogram (ID=11) for the projeted angle at exit.
|
|
Bug corrected in gustep.
|
|
o New macros for multiple-scattering tests: run61,71,81,91
|
|
o Proper deletion of old geometry when it is updated.
|
|
+ TestEm6
|
|
o
|
|
+ TestEm7
|
|
o New example simulating energy deposited by particles absorbed
|
|
in a given material (Bragg peak).
|
|
+ TestEm8
|
|
o Fixed warnings and changed input parameters for updated PAI.
|
|
o field
|
|
+ Fixed geometry construction in case of switching of detector.
|
|
o geometry
|
|
+ cad
|
|
o GNUmakefile: added control through G4USE_STEP variable.
|
|
o medical
|
|
+ DICOM
|
|
o New application implementing a Geant4 interface to the DICOM
|
|
image format for the simulation of a phantom geometry.
|
|
o persistency
|
|
+ Updates to README and scripts.
|
|
- novice
|
|
o N03
|
|
+ Properly delete volumes/solids when geometry is updated.
|
|
+ Moved heprep.mac to visTutor.
|