Primary and secondary particles

[m.rajabnejad]

Hi G4ers,

I have a question about primary and secondary particles in GEANT4.

In this platform I saw somewhere for secondary particles said we can use: if (step->GetTrack()->GetTrackID() == 1)…
How we can calculate energy deposition of secondary particles?

or
in another topic
auto secondary = step->GetSecondaryInCurrentStep();
size_t size_secondary = (*secondary).size();

if (size_secondary){
for (size_t i=0; i<(size_secondary);i++){…

Get secondaries

Hi G4ers, I am simulating neutrons in Boron Nitride which sometimes results in a 10B(n,α)7Li. I want to get the alpha particles so I can calculate their deposited energy, however when I use: step->GetTrack()->GetParticleDefinition()->GetParticleName(); In my SteppingAction, after a run I can find tracks of neutrons, gamma’s, Li7, B10, B11 but no alpha particles. I can see that neutrons that created the Li7 always produce 3 or 5 secondaries, so there are more particles created but why can’t I …

Actually, I’m confused. So I decided on the below orders.
is it correct that if we want to get information about primary particles, we use this order
if (step->GetTrack()->GetParentID() == 0)
{
…
}

and for secondary particles, we use this one:
if (step->GetTrack()->GetParentID() != 0)
{
…
}
Please let me know if I am wrong

Thank you
mohaddeseh