|Message: Error in G4NeutronHPFissionData::GetCrossSection()||Not Logged In (login)|
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I am trying to simulated the neutron propagation in Thorium, and since Th232 does not undergo fission, the fission processes should not be present. If I run the code without the $G4NEUTRONHP_SKIP_MISSING_ISOTOPES variable, the fission cross-section of U232 will be used and the fission processes will occur. In this case the code runs without any error messages...
However since there is no fission in reality, I am setting the $G4NEUTRONHP_SKIP_MISSING_ISOTOPES variable to 1, and the fission cross-section is set to 0, which is fine. But now, immediately after a (low energy) neutron enters the Thorium, I am getting a segmentation violation error in G4NeutronHPFissionData::GetCrossSection(), error which I don't get if I use previous (e.g. gean4.9.2.p02) versions of geant4, and the code stops running.
The error message (as I said present ONLY in geant4.9.3) is:
========== STACKS OF ALL THREADS ==========
Thread 1 (process 24537 thread 0x10b):
#0 0x9362f189 in wait4 () #1 0x9364e841 in system () #2 0x044bdcb8 in TUnixSystem::StackTrace () #3 0x044c05d9 in TUnixSystem::DispatchSignals () #4 0x044c0727 in SigHandler () #5 <signal handler called> #6 0x0139ae88 in G4NeutronHPFissionData::GetCrossSection () #7 0x022091b3 in G4CrossSectionDataStore::GetCrossSection () #8 0x02209314 in G4CrossSectionDataStore::GetCrossSection () #9 0x00fe3c14 in G4HadronicProcess::GetMeanFreePath () #10 0x000bef8d in G4VDiscreteProcess::PostStepGetPhysicalInteractionLength () #11 0x025dd9d7 in G4SteppingManager::DefinePhysicalStepLength () #12 0x025dc69f in G4SteppingManager::Stepping () #13 0x025e3ad2 in G4TrackingManager::ProcessOneTrack () #14 0x025114c4 in G4EventManager::DoProcessing () #15 0x00a88d92 in G4RunManager::DoEventLoop () #16 0x00a89ff1 in G4RunManager::BeamOn () #17 0x00a8ced5 in G4RunMessenger::SetNewValue () #18 0x02e147b1 in G4UIcommand::DoIt () #19 0x02e1cda6 in G4UImanager::ApplyCommand () #20 0x02e08094 in G4UIbatch::ExecCommand () #21 0x02e082eb in G4UIbatch::SessionStart () #22 0x02e1b8cd in G4UImanager::ExecuteMacroFile () #23 0x02e1ad02 in G4UIcontrolMessenger::SetNewValue () #24 0x02e147b1 in G4UIcommand::DoIt () #25 0x02e1cda6 in G4UImanager::ApplyCommand ()
I would be very grateful for any suggestions in how to sort out this problem.