G4FTFPNeutronBuilder.cc

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// $Id: G4FTFPNeutronBuilder.cc 103555 2017-04-18 09:04:37Z gcosmo $
//
//---------------------------------------------------------------------------
//
// ClassName:   G4FTFPNeutronBuilder
//
// Author: 2002 J.P. Wellisch
//
// Modified:
// 18.11.2010 G.Folger, use G4CrossSectionPairGG for relativistic rise of cross
//             section at high energies.
// 30.03.2009 V.Ivanchenko create cross section by new
// 12.04.2017 A.Dotti move to new design with base class
//
//----------------------------------------------------------------------------
//
#include "G4FTFPNeutronBuilder.hh"
#include "G4SystemOfUnits.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
#include "G4ProcessManager.hh"
#include "G4BGGNucleonInelasticXS.hh"

G4FTFPNeutronBuilder::
G4FTFPNeutronBuilder(G4bool quasiElastic) 
{
  theMin =   4*GeV;
  theMax = 100*TeV;
  theModel = new G4TheoFSGenerator("FTFP");

  theStringModel = new G4FTFModel;
  theStringDecay = new G4ExcitedStringDecay(theLund = new G4LundStringFragmentation);
  theStringModel->SetFragmentationModel(theStringDecay);

  theCascade = new G4GeneratorPrecompoundInterface();

  theModel->SetTransport(theCascade);

  theModel->SetHighEnergyGenerator(theStringModel);
  if (quasiElastic)
  {
     theQuasiElastic=new G4QuasiElasticChannel;
     theModel->SetQuasiElasticChannel(theQuasiElastic);
  } else 
  {  theQuasiElastic=0;}  

  theModel->SetMinEnergy(theMin);
  theModel->SetMaxEnergy(100*TeV);
}

G4FTFPNeutronBuilder::
~G4FTFPNeutronBuilder() 
{
  delete theStringDecay;
  delete theStringModel;
  if ( theQuasiElastic ) delete theQuasiElastic;
  delete theLund;
}

void G4FTFPNeutronBuilder::
Build(G4NeutronInelasticProcess * aP)
{
  theModel->SetMinEnergy(theMin);
  theModel->SetMaxEnergy(theMax);
  aP->RegisterMe(theModel);
    aP->AddDataSet(new G4BGGNucleonInelasticXS(G4Neutron::Neutron()));
    
}

 // 2002 by J.P. Wellisch