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// $Id: HadrontherapyPhotonEPDL.cc; May 2005
// ----------------------------------------------------------------------------
//                 GEANT 4 - Hadrontherapy example
// ----------------------------------------------------------------------------
// Code developed by:
//
// G.A.P. Cirrone(a)*, F. Di Rosa(a), S. Guatelli(b), G. Russo(a)
// 
// (a) Laboratori Nazionali del Sud 
//     of the National Institute for Nuclear Physics, Catania, Italy
// (b) National Institute for Nuclear Physics Section of Genova, genova, Italy
// 
// * cirrone@lns.infn.it
// ----------------------------------------------------------------------------

#include "EMPhotonEPDL.hh"
#include "G4ProcessManager.hh"
#include "G4ParticleDefinition.hh"
#include "G4Gamma.hh"
#include "G4LowEnergyCompton.hh"
#include "G4LowEnergyGammaConversion.hh"
#include "G4LowEnergyPhotoElectric.hh"
#include "G4LowEnergyRayleigh.hh"
#include "G4StepLimiter.hh"


EMPhotonEPDL::EMPhotonEPDL(const G4String& name): 
   G4VPhysicsConstructor(name)
{ 
  G4cout<< "ELECTROMAGNETIC PROCESS(ES): G4LowEnergyPhotoElectric (photon)" 
        << G4endl
        << "                             G4LowEnergyCompton (photon)" 
        << G4endl
        << "                             G4LowEnergyGammaConversion (photon)" 
        << G4endl
        << "                             G4LowEnergyRayleigh (photon)" 
        << G4endl
        << "APPLIED MODEL(S): -" 
        << G4endl;
}

EMPhotonEPDL::~EMPhotonEPDL()
{ }

void EMPhotonEPDL::ConstructProcess()
{

  // **************
  // *** Photon ***
  // **************
  
  G4LowEnergyPhotoElectric* photonPhotoElectricProcess = new G4LowEnergyPhotoElectric();
  G4LowEnergyCompton* photonComptonProcess = new G4LowEnergyCompton;
  G4LowEnergyGammaConversion* photonGammaConvProcess = new G4LowEnergyGammaConversion;
  G4LowEnergyRayleigh* photonRayleighProcess = new G4LowEnergyRayleigh;

  G4StepLimiter* photonStepLimiter = new G4StepLimiter();

  G4ParticleDefinition* particle = G4Gamma::Gamma(); 
  G4ProcessManager* processManager = particle -> GetProcessManager();
  processManager -> AddDiscreteProcess(photonPhotoElectricProcess);
  processManager -> AddDiscreteProcess(photonComptonProcess);
  processManager -> AddDiscreteProcess(photonGammaConvProcess);
  processManager -> AddDiscreteProcess(photonRayleighProcess);
  processManager -> AddProcess(photonStepLimiter, -1, -1,  3);

}