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[FIXED] problem with GEANT4 materials [message #10294] Wed, 24 February 2010 15:39 Go to previous message
Dmitry Khaneft is currently offline  Dmitry Khaneft
Messages: 75
Registered: January 2009
continuous participant
From: *
Dear all,

I tried to implement some dead material as a part of the EMC backward encap.

I created some boxes made of copper but it cause an error during a simulation. If I replace copper with aluminium everything works!

Error log:


====== EMC:: ConstructROOTGeometry() m4 ===
File name Bw = /u/dkhaneft/fairsoft/feb10/geometry/emc_module4_StraightGeo24.4_Al2_MVD. root
Info in <TGeoManager::CheckGeometry>: Fixing runtime shapes...
Info in <TGeoManager::CheckGeometry>: ...Nothing to fix
Info in <TGeoManager::CloseGeometry>: Counting nodes...
Info in <TGeoManager::Voxelize>: Voxelizing...
Info in <TGeoManager::CloseGeometry>: Building cache...
Info in <TGeoNavigator::BuildCache>: --- Maximum geometry depth set to 100
Info in <TGeoManager::CloseGeometry>: 768 nodes/ 23 volume UID's in FAIR geometry
Info in <TGeoManager::CloseGeometry>: ----------------modeler ready----------------
Info in <TG4RootNavMgr::SetNavigator>: TG4RootNavigator created and registered to G4TransportationManager
Running TVirtualMCApplication::ConstructGeometry
Geant4 version Name: geant4-09-02-patch-02 (28-August-2009)
Copyright : Geant4 Collaboration
Reference : NIM A 506 (2003), 250-303

Info in <TG4RootNavMgr::Initialize>: Creating G4 hierarchy ...
Info in <TGeoManager::ConvertReflections>: Converting reflections in: FAIRGeom - FAIR geometry ...
Info in <TGeoManager::ConvertReflections>: Done
===> GEANT4 materials created and mapped to TGeo ones...

*** Break *** segmentation violation



The lines below might hint at the cause of the crash.
If they do not help you then please submit a bug report at Please post the ENTIRE stack trace
from above as an attachment in addition to anything else
that might help us fixing this issue.
#10 0xb64af89c in TGeoMedium::GetMaterial (this=0x0) at include/TGeoMedium.h:54
#11 0xaae5cad1 in TG4RootDetectorConstruction::CreateG4LogicalVolume (this=0xa2009e0, vol=0x8e9f6b8)
at montecarlo/g4root/src/TG4RootDetectorConstruction.cxx:284
#12 0xaae5cd9f in TG4RootDetectorConstruction::CreateG4PhysicalVolume (this=0xa2009e0, node=0x8e9f678)
at montecarlo/g4root/src/TG4RootDetectorConstruction.cxx:310
#13 0xaae5d2d1 in TG4RootDetectorConstruction::CreateG4PhysicalVolumes (this=0xa2009e0) at montecarlo/g4root/src/TG4RootDetectorConstruction.cxx:225
#14 0xaae5d413 in TG4RootDetectorConstruction::Construct (this=0xa2009e0) at montecarlo/g4root/src/TG4RootDetectorConstruction.cxx:191
#15 0xaae5b97e in TG4RootDetectorConstruction::Initialize (this=0xa2009e0, sdinit=0xa2140b8) at montecarlo/g4root/src/TG4RootDetectorConstruction.cxx:173
#16 0xaae68293 in TG4RootNavMgr::Initialize (this=0x8cc7850, sdinit=0xa2140b8) at montecarlo/g4root/src/TG4RootNavMgr.cxx:131
#17 0xaadd3f13 in TG4RunManager::ConfigureRunManager (this=0x8d4d140) at run/src/TG4RunManager.cxx:233
#18 0xaadd4945 in TG4RunManager (this=0x8d4d140, runConfiguration=0x8c8d2c0) at run/src/TG4RunManager.cxx:153
#19 0xaaddc57f in TGeant4 (this=0x8cf4f20, name=0x890a50c "TGeant4", title=0x8c8306c "The Geant4 Monte Carlo", configuration=0x8c8d2c0)
at run/src/TGeant4.cxx:148

Any idea what is wrong with a copper?

Best regards,

[Updated on: Wed, 24 February 2010 17:08]

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