G4NeutronTrackingCut.cc

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//
//---------------------------------------------------------------------------
//
// ClassName:   G4NeutronTrackingCut
//
// Author: Nov 2006 G.Folger
//
//
//----------------------------------------------------------------------------
//
 
#include "G4NeutronTrackingCut.hh"
 
#include "G4SystemOfUnits.hh"
#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"
 
#include "G4Neutron.hh"
#include "G4NeutronKiller.hh"
#include "G4HadronicProcessStore.hh"
#include "G4PhysListUtil.hh"
#include "G4NeutronGeneralProcess.hh"
 
#include "G4BuilderType.hh"
#include "G4Threading.hh"
 
// factory
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4NeutronTrackingCut);
//
 
G4NeutronTrackingCut::G4NeutronTrackingCut(G4int ver)
  :  G4VPhysicsConstructor("neutronTrackingCut"), verbose(ver)
{
  timeLimit = 10*CLHEP::microsecond;
  kineticEnergyLimit = 0.0;
  SetPhysicsType(bUnknown);
}
 
G4NeutronTrackingCut::G4NeutronTrackingCut(const G4String&, G4int ver)
  :  G4NeutronTrackingCut(ver)
{}
 
G4NeutronTrackingCut::~G4NeutronTrackingCut()
{}
 
void G4NeutronTrackingCut::ConstructParticle()
{
  G4Neutron::NeutronDefinition();
}
 
void G4NeutronTrackingCut::ConstructProcess()
{
  auto particle = G4Neutron::Neutron();
  auto proc = dynamic_cast<G4NeutronGeneralProcess*>(G4PhysListUtil::FindProcess(particle, fNeutronGeneral));
  if(nullptr != proc) { return; }
 
  G4NeutronKiller* pNeutronKiller = new G4NeutronKiller();
  G4ProcessManager * pmanager = particle->GetProcessManager();
 
  if(verbose > 0 && G4Threading::IsMasterThread()) {
    G4String pn = particle->GetParticleName();//Avoid data-race when passing
                                              //this string to G4MTcout
    G4cout << "### Adding tracking cuts for " << pn 
       << "  TimeCut(ns)= " << timeLimit/ns 
       << "  KinEnergyCut(MeV)= " <<  kineticEnergyLimit/MeV
       <<  G4endl;
  }
  pmanager->AddDiscreteProcess(pNeutronKiller);
  pNeutronKiller->SetKinEnergyLimit(kineticEnergyLimit);
  pNeutronKiller->SetTimeLimit(timeLimit);
 
  G4HadronicProcessStore::Instance()->RegisterExtraProcess(pNeutronKiller);
  G4HadronicProcessStore::Instance()->RegisterParticleForExtraProcess(pNeutronKiller, particle);
}