|Message: Problem with ion-generation||Not Logged In (login)|
Click on the Forum title, e.g. on the "Forums by Category" page, to read a sequence of postings to the Forum and its threads all in one page. If you are only interested in one thread or the thread following a specific posting, click the thread or the posting, which takes you to a smaller page, which contains only the part you are interested in and may be easier to navigate.
Messages are "chained" if there are only replies at the first level, i.e. 1/1.html, 1/1/1.html etc. In case of "chained" messages the message number is replaced by the icon and there is no indentation.
Inline: Display the subject line only or also the text of the posting(s); for the choice "All" the "Outline" choices are switched off.
|1||0||1||no text / full text of posting|
|2||1||All||text for level 1 only / text for All postings|
Outline: Choose the depth of the posting thread, successive toggle controls provide increasing detail.
|1||2||1||2 levels / 1 level (original posting)|
|2||3||2||3 levels / 2 levels|
|3||3||All||3 levels / all levels (all postings)|
I'm trying to generate a beam of unstable Mg30 ions. So far I have included the Ion-physics from the novice example Ex04 into my PhysicsList and I'm generating the particles with:
G4ThreeVector beam_position = G4ThreeVector(BEAM_X, BEAM_Y, BEAM_Z);
G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
G4ParticleDefinition* ion = particleTable->GetIon(12, 30, 0.0);
This seems to work, but after the ion is generated, the program crashes with a segmentation violation:
#0 0x082b2d49 in G4ionIonisation::GetMeanFreePath () #1 0x08335002 in G4VContinuousDiscreteProcess::PostStepGetPhysicalInteractionLength () #2 0x082625c6 in G4SteppingManager::DefinePhysicalStepLength () #3 0x08260c6c in G4SteppingManager::Stepping () #4 0x0824c2ea in G4TrackingManager::ProcessOneTrack () #5 0x0823c0a8 in G4EventManager::DoProcessing () #6 0x0823c675 in G4EventManager::ProcessOneEvent () #7 0x08219eb5 in G4RunManager::DoEventLoop () #8 0x082195c5 in G4RunManager::BeamOn () #9 0x08113cb2 in IS410Data::run () #10 0x0810b449 in main () #11 0x4196514f in __libc_start_main () from /lib/libc.so.6
Could this be a problem with Geant, or did I do something stupid to make it crash? Any help/ideas are appreciated. Thanks,
|Inline Depth:||Outline Depth:||Add message:|