G4DNAExcitation.cc

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// $Id: G4DNAExcitation.cc 105719 2017-08-16 12:36:37Z gcosmo $

#include "G4DNAExcitation.hh"
#include "G4LEPTSExcitationModel.hh"
#include "G4SystemOfUnits.hh"
#include "G4Positron.hh"

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using namespace std;

G4DNAExcitation::G4DNAExcitation(const G4String& processName,
                                 G4ProcessType type) :
    G4VEmProcess(processName, type), isInitialised(false)
{
  SetProcessSubType(52);
}

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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 == G4Positron::Positron()
          || &p == G4Proton::ProtonDefinition()
          || &p == instance->GetIon("hydrogen")
          || &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-")
    {

      // Emfietzoglou model
      /*
       if(!EmModel()) SetEmModel(new G4DNAEmfietzoglouExcitationModel);
       EmModel()->SetLowEnergyLimit(8.23*eV);
       EmModel()->SetHighEnergyLimit(10*MeV);
       */
      // Born model
      if(!EmModel())
      {
        G4DNABornExcitationModel* born = new G4DNABornExcitationModel();
        SetEmModel(born);
        born->SetLowEnergyLimit(9 * eV);
        born->SetHighEnergyLimit(1 * MeV);
      }
      AddEmModel(1, EmModel());
    }

    else if(name == "e+")
    {
      if(!EmModel())
      {
        G4LEPTSExcitationModel* lepts = new G4LEPTSExcitationModel();
        SetEmModel(lepts);
        lepts->SetLowEnergyLimit(1 * eV);
        lepts->SetHighEnergyLimit(1 * MeV);
      }
      AddEmModel(1, EmModel());
    }

    else if(name == "proton")
    {
      if(!EmModel(0)) // MK: Is this a correct test ?
      {
        G4DNAMillerGreenExcitationModel* miller =
            new G4DNAMillerGreenExcitationModel();
        SetEmModel(miller);
        miller->SetLowEnergyLimit(10 * eV);
        miller->SetHighEnergyLimit(500 * keV);

        G4DNABornExcitationModel* born = new G4DNABornExcitationModel();
        SetEmModel(born);
        born->SetLowEnergyLimit(500 * keV);
        born->SetHighEnergyLimit(100 * MeV);
      }

      AddEmModel(1, EmModel());
      if(EmModel(1)) AddEmModel(2, EmModel(1));
    }

    else if(name == "hydrogen")
    {
      if(!EmModel())
      {
        G4DNAMillerGreenExcitationModel* miller =
            new G4DNAMillerGreenExcitationModel;
        SetEmModel(miller);
        miller->SetLowEnergyLimit(10 * eV);
        miller->SetHighEnergyLimit(500 * keV);
      }
      AddEmModel(1, EmModel());
    }

    else if(name == "alpha" || name == "alpha+" || name == "helium")
    {
      if(!EmModel())
      {
        G4DNAMillerGreenExcitationModel* miller =
            new G4DNAMillerGreenExcitationModel;
        SetEmModel(miller);
        miller->SetLowEnergyLimit(1 * keV);
        miller->SetHighEnergyLimit(400 * MeV);
      }
      AddEmModel(1, EmModel());
    }
  }
}

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

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