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‎Configure

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‎ReleaseNotes/Patch4.4.1-1.txt

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Geant4 4.1 - patch-01 Release Notes
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-----------------------------------
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31st July 2002
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List of fixes included in this public patch to release 4.1:
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o Config:
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------
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- Upgraded WIN32-g++ setup to compile with -ansi and gcc-2.95.3 for
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most recent versions of CygWin.
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o Electromagnetic processes (low-energy):
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--------------------------------------
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- Bug fix in delta-electron spectra.
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- Bug fix in simulation of EM processes in compounds.
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- Optimised loading of data in G4AugerData.
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o Event:
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-----
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- G4PrimaryParticle:
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o Bug fixed in the initialisation of 'charge' for all constructors.
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o Geometry:
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--------
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+ magnetic-field:
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- G4FieldManager:
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o made 'fDefault_Delta_One_Step_Value' and
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'fDefault_Delta_Intersection_Val' non static constants to resolve
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initialisation problems. Fixes problem report #383.
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- G4ChordFinder:
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o in NewStep, fixed case of stepTrial >> stepTrialOld, to take
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large multiple - not small
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o added guard for stepTrial==0.0 in FindNextChord().
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- G4MagIntegratorDriver:
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o added protection against error of 0.0 in ComputeNewStepSize.
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o cleared warning of unused variable.
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- G4EquationOfMotion:
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o made RightHandSide() an inline method
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o in GetFieldValue() signature of Point is double[4],
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instead of double[3]
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o defined G4maximum_number_of_field_components as enum.
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+ solids/CSG:
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- G4Cons:
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o Bug fixed in DistanceToIn(p,v) concerning z-crossing at
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the edge with Rmin,Rmax.
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+ solids/STEP:
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- Fixed GNUmakefile to parse 'g++' string in G4SYSTEM to detect
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non-ISO setup for gcc-2.95 and higher.
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+ solids/STEPinterface:
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- Fixed GNUmakefile to parse 'g++' string in G4SYSTEM to detect
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non-ISO setup for gcc-2.95 and higher.
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+ verification:
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- G4GeomTestVolume:
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o Fixed recursive call to G4GeomTestVolume to consider also
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'tolerance' as argument in the recursive test algorithm.
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+ volumes:
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- Code cleanup and cosmetics for most classes.
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- G4PropagatorInField:
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o In ComputeStep(), reset status to original by setting 'fNoZeroStep'
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to zero if (fNoZeroStep > fAbandonThreshold_NoZeroSteps).
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Fixes a problem observed in cases when a looping track is killed,
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the bug was causing also subsequent tracks to be killed.
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o Removed not-implemented constructor taking G4Navigator* as argument.
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o Get rid of static const data for default 'epsilonStep' size.
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o Initialised all data members in constructor!
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o Global:
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------
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- G4Allocator:
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o Moved page size to become data-member of G4Allocator.
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'fPageSize' is now computed according to the size of the object
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to be allocated. The default size is 1024 bytes for objects whose
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size is less than 512 bytes, 10 times the size of the object otherwise.
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o Hadronic processes:
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------------------
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+ management, utils, models/high_energy:
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o Introduced accounting of strange baryons.
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o Introduced accounting for anti-nucleons and strange mesons.
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o Improved treatement of inelasticity for annihilation events and pion
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absorptive reactions.
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o Added protection in the call to phase-space method for pion induced
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reactions.
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o Fixed error in energy conservation observed by BTEV.
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Used to show (1/500) for 1.5-2.5 GeV pion reactions in medium A nuclei.
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+ cross-sections:
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o Fixed bug in caching information in gamma nuclear cross-sections
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(G4PhotoNuclearCrossSection).
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o Examples:
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--------
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- Corrected README in exampleN01.
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- Updated reference outputs.
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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 4.1.
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o Technical notes distributed for release 4.1 are also applicable and
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valid for this patch.
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The code and rebuilt binary libraries for release 4.1 are available through
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our "Source Code" Web page:
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- see our <A href="http://cern.ch/geant4">Geant4 Home Page</A>.
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Please refer to <A
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href="http://cern.ch/geant4/G4UsersDocuments/Overview/html/index.html">Geant4
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User Documentation</A> for further information about using Geant4.

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