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// $Id: HadrontherapyPhotonStandard.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 "EMPhotonStandard.hh"
#include "G4ProcessManager.hh"
#include "G4ParticleDefinition.hh"
#include "G4Gamma.hh"
#include "G4ComptonScattering.hh"
#include "G4GammaConversion.hh"
#include "G4PhotoElectricEffect.hh"
#include "G4StepLimiter.hh"
#include "G4EmProcessOptions.hh"


EMPhotonStandard::EMPhotonStandard(const G4String& name): 
   G4VPhysicsConstructor(name)
{ 
  G4cout<< "ELECTROMAGNETIC PROCESS(ES): G4PhotoElectricEffect (photon)" 
        << G4endl
        << "                             G4ComptonScattering (photon)" 
        << G4endl
        << "                             G4GammaConversion (photon)" 
        << G4endl
        << "APPLIED MODEL(S): -" 
        << G4endl;
}

EMPhotonStandard::~EMPhotonStandard()
{ }

void EMPhotonStandard::ConstructProcess()
{

  // **************
  // *** Photon ***
  // **************

  G4EmProcessOptions* photonEmProcessOptions = new G4EmProcessOptions();
  photonEmProcessOptions -> SetDEDXBinning(480);
   
  G4PhotoElectricEffect* photonPhotoElectricProcess = new G4PhotoElectricEffect();
  G4ComptonScattering* photonComptonProcess = new G4ComptonScattering;
  G4GammaConversion* photonGammaConvProcess = new G4GammaConversion;

  G4StepLimiter* photonStepLimiter = new G4StepLimiter();

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

}