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// $Id: G4DNAExcitation.cc,v 1.3 2009/03/04 13:28:49 sincerti Exp $
// GEANT4 tag $Name: geant4-09-03 $

#include "G4DNAExcitation.hh"

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using namespace std;

G4DNAExcitation::G4DNAExcitation(const G4String& processName,
  G4ProcessType type):G4VEmProcess (processName, type),
    isInitialised(false)
{
  SetProcessSubType(51);
}

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G4DNAExcitation::~G4DNAExcitation()
{}

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G4bool G4DNAExcitation::IsApplicable(const G4ParticleDefinition& p)
{

  G4DNAGenericIonsManager *instance;
  instance = G4DNAGenericIonsManager::Instance();

  return 
    (
       &p == G4Electron::Electron() 
    || &p == G4Proton::ProtonDefinition()
    || &p == instance->GetIon("alpha++")
    || &p == instance->GetIon("alpha+")
    || &p == instance->GetIon("helium")
    );
}

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void G4DNAExcitation::InitialiseProcess(const G4ParticleDefinition* p)
{
  if(!isInitialised) 
  {
    isInitialised = true;
    SetBuildTableFlag(false);
    
    G4String name = p->GetParticleName();

    if(name == "e-")
    {
      if(!Model()) SetModel(new G4DNAEmfietzoglouExcitationModel);
      Model()->SetLowEnergyLimit(8.23*eV);
      Model()->SetHighEnergyLimit(10*MeV);

      AddEmModel(1, Model());   
    }
    
    if(name == "proton")
    {
      if(!Model(1)) SetModel(new G4DNAMillerGreenExcitationModel,1);
      Model(1)->SetLowEnergyLimit(10*eV);
      Model(1)->SetHighEnergyLimit(500*keV);

      if(!Model(2)) SetModel(new G4DNABornExcitationModel,2);
      Model(2)->SetLowEnergyLimit(500*keV);
      Model(2)->SetHighEnergyLimit(10*MeV);
    
      AddEmModel(1, Model(1));   
      AddEmModel(2, Model(2));   
    }

    if( name == "alpha" || name == "alpha+" || name == "helium" )
    {
      if(!Model()) SetModel(new G4DNAMillerGreenExcitationModel);
      Model()->SetLowEnergyLimit(1*keV);
      Model()->SetHighEnergyLimit(10*MeV);

      AddEmModel(1, Model());   
    }

  } 
}

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void G4DNAExcitation::PrintInfo()
{
  if (Model(2))
  {
    G4cout
      << " Total cross sections computed from " 
      << Model(1)->GetName() 
      << " and "
      << Model(2)->GetName() 
      << " models"
      << G4endl;
  } 
  else
  {
    G4cout
      << " Total cross sections computed from " 
      << Model()->GetName() 
      << G4endl;
  }
}         

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