G4BertiniElectroNuclearBuilder.cc

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// $Id: G4BertiniElectroNuclearBuilder.cc 104018 2017-05-08 07:32:45Z gcosmo $
//
//---------------------------------------------------------------------------
//
// ClassName:   G4BertiniElectroNuclearBuilder
//
// Author: 2002 H.P. Wellisch
//
// Modified: 
// 25.04.2006 V.Ivanchenko fix destructor 
//
//----------------------------------------------------------------------------
//

#include "G4BertiniElectroNuclearBuilder.hh"

#include "globals.hh"
#include "G4ios.hh"
#include "G4SystemOfUnits.hh"

#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
#include "G4Gamma.hh"
#include "G4Electron.hh"
#include "G4Positron.hh"
#include "G4ProcessManager.hh"


G4BertiniElectroNuclearBuilder::G4BertiniElectroNuclearBuilder(G4bool eNucl) : 
  thePhotoNuclearProcess(nullptr), theElectronNuclearProcess(nullptr), 
  thePositronNuclearProcess(nullptr), theElectroReaction(nullptr), 
  theGammaReaction(nullptr), theModel(nullptr), theCascade(nullptr), 
  theStringModel(nullptr), theFragmentation(nullptr), theStringDecay(nullptr), 
  wasActivated(false), eActivated(eNucl)
{
}

G4BertiniElectroNuclearBuilder::~G4BertiniElectroNuclearBuilder() 
{
  if(wasActivated) {
    delete theFragmentation;
    delete theStringDecay;
  }
}

void G4BertiniElectroNuclearBuilder::Build()
{
  if(wasActivated) return;
  wasActivated=true;
  
  thePhotoNuclearProcess = new G4PhotoNuclearProcess;
  if(eActivated) {
    theElectronNuclearProcess = new G4ElectronNuclearProcess;
    thePositronNuclearProcess = new G4PositronNuclearProcess;
    theElectroReaction = new G4ElectroVDNuclearModel;
  }
  theGammaReaction = new G4CascadeInterface;

  theModel = new G4TheoFSGenerator;

  theStringModel = new G4QGSModel< G4GammaParticipants >;
  theStringDecay = new G4ExcitedStringDecay(theFragmentation=new G4QGSMFragmentation);
  theStringModel->SetFragmentationModel(theStringDecay);

  theCascade = new G4GeneratorPrecompoundInterface;

  theModel->SetTransport(theCascade);
  theModel->SetHighEnergyGenerator(theStringModel);

  G4ProcessManager * aProcMan = nullptr;
  
  aProcMan = G4Gamma::Gamma()->GetProcessManager();
  theGammaReaction->SetMaxEnergy(3.5*GeV);
  thePhotoNuclearProcess->RegisterMe(theGammaReaction);
  theModel->SetMinEnergy(3.*GeV);
  theModel->SetMaxEnergy(100*TeV);
  thePhotoNuclearProcess->RegisterMe(theModel);
  aProcMan->AddDiscreteProcess(thePhotoNuclearProcess);

  if(eActivated) {  
    aProcMan = G4Electron::Electron()->GetProcessManager();
    theElectronNuclearProcess->RegisterMe(theElectroReaction);
    aProcMan->AddDiscreteProcess(theElectronNuclearProcess);
  
    aProcMan = G4Positron::Positron()->GetProcessManager();
    thePositronNuclearProcess->RegisterMe(theElectroReaction);
    aProcMan->AddDiscreteProcess(thePositronNuclearProcess);
  }
}