Get interacting isotpe?

[loydms]

FYI I have found this thread which explains how to do it.

Can we know which atom the deposited energy is deposited on

@lvll98 I presume you’re asking about the target “atom type”, not position? Unfortunately, I don’t believe that’s available in a generic way. If the interaction was hadronic, then G4Isotope* G4HadronicProcess::GetTargetIsotope() or G4Nucleus* G4HadronicProcess::GetTargetNucleus() can get you this information. Use code along the lines of (note the null pointer checks at each step) G4StepPoint* post = theStep->GetPostStepPoint(); const G4VProcess* proc = (post ? post->GetProcessDefinedStep…

However due to using an older version of Geant4, I had to use G4HadronInelasticProcess instead of G4HadronicProcess