How can we get the name of interactions have been take place?

Physics Processes, Models and Cross Sections
1

how can we know the name of a special interaction has been take place in Geant4? in my simulation program I have low energy protons (< 10 MeV) as incident particles which they interact with silicon in a bulk. due to different isotopes of silicons elastic or inelastic scattering may take place. how can I understand which one of these two interactions has been occurred?

Thank you

2

You can retrieve the Process Name using the Stepping Verbose. It should be possible to distinguish between elastic and inelastic scattering process.

3

A specific solution would be to obtain the end point of the step in your UserSteppingAction and see what process occurred there. Then get the name of this process like so:

void SteppingAction::UserSteppingAction(const G4Step* step)
{
    const G4StepPoint* endPoint   = step->GetPostStepPoint();
    const G4VProcess*  process    = endPoint->GetProcessDefinedStep();
    G4cout << process->GetProcessName() << G4endl;
    /* ... more code ... */
}

Stefan