|Message: Re: Finding all particles involved in an interaction||Not Logged In (login)|
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On Mon, 13 Jul 2015 05:32:19 GMT, Michael H. Kelsey wrote:
> > Unfortunately, that is the only way. The underlying "problem" is that > the material does not consist of "particles" in the G4 sense. Each > process knows what the tracked particle is, and it knows the material. > For hadronic interactions [like (n,gamma) or (n,alpha)], the process > uses the material composition and cross-sections to choose the specific > isotope for the interaction. Then it creates a strictly internal object > (a G4Nucleus, usually) as the target, and passes the track and target > into the appropriate model (G4HadronicInteraction subclass). > > That target object is internal to the hadronic interaction code, and is > never visible outside. >
In example Hadr03, SteppingAction, I read :
//initialisation of the nuclear channel identification // G4ParticleDefinition* particle = aStep->GetTrack()->GetDefinition(); G4String partName = particle->GetParticleName(); // G4HadronicProcess* hproc = (G4HadronicProcess*) process; const G4Isotope* target = hproc->GetTargetIsotope(); if (target) targetName = target->GetName();
It works ! (even with neutronHP ...)
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