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Question Code is crashing, seems like a photonuclear is responsible 

Forum: Hadronic Processes
Date: Jan 23, 14:24
From: Aleksey Sher <Aleksey Sher>

Hello, we are running a G4 (Geant4/10.02.p03) on a computing cluster.
And our code, that normally works is experiencing an error (see the output below).
Most of the jobs fail with something like this after a few thousand events.
The gamma energy is always some small fraction of an MeV.

If someone can give a hint, that would be helpful.

Output of the crash is below (gamma enters a NaI (Z=53)):


===============================================================================


G4VCrossSectionDataSet::GetCrossSection per element ERROR:  there is no cross section for gamma  E(MeV)= 0.0375935 for Z= 53
In /dev/shm/ebuser/Geant4/10.02.p03/iccifort-2016.4/geant4.10.02.p03/source/processes/hadronic/cross_sections/src/G4VCrossSectionDataSet.cc, line 146:
===> G4VCrossSectionDataSet::GetElementCrossSection is absent

-------- EEEE ------- G4Exception-START -------- EEEE -------
*** G4Exception : had006
      issued by : G4HadronicProcess::PostStepDoIt
In /dev/shm/ebuser/Geant4/10.02.p03/iccifort-2016.4/geant4.10.02.p03/source/processes/hadronic/cross_sections/src/G4VCrossSectionDataSet.cc, line 146:
===> G4VCrossSectionDataSet::GetElementCrossSection is absent
Call for G4ElectroVDNuclearModel
Target element I  Z= 53  A= 127
Unrecoverable error in the method ApplyYourself of positronNuclear
TrackID= 1  ParentID= 0  e+
Ekin(GeV)= 0.0404746;  direction= (0.0796135,-0.00414759,0.996817)
Position(mm)= (-30.4713,-5.4322,688.119);  material G4_SODIUM_IODIDE
PhysicalVolume  <NaI>
 ApplyYourself failed

*** Fatal Exception *** core dump ***

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1 Idea: Re: Code is crashing, seems like a photonuclear is responsible   (Vladimir Ivanchenko - Jan 30, 08:30)
(_ More: Re: Code is crashing, seems like a photonuclear is responsible   (Aleksey Sher - Jan 31, 14:36)
(_ Idea: Re: Code is crashing, seems like a photonuclear is responsible   (Vladimir Ivanchenko - Feb 01, 10:00)
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