PhysListEmStandard_option3.cc

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//
// $Id$
//
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#include "PhysListEmStandard_option3.hh"
#include "DetectorConstruction.hh"

#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"

#include "G4ComptonScattering.hh"
#include "MyKleinNishinaCompton.hh"
#include "G4GammaConversion.hh"
#include "G4PhotoElectricEffect.hh"

#include "G4eMultipleScattering.hh"
#include "G4UrbanMscModel95.hh"

#include "G4eIonisation.hh"
#include "MyMollerBhabhaModel.hh"
#include "G4eBremsstrahlung.hh"
#include "G4eplusAnnihilation.hh"

#include "G4hIonisation.hh"
#include "G4hMultipleScattering.hh"

#include "G4EmProcessOptions.hh"
#include "G4MscStepLimitType.hh"

#include "G4SystemOfUnits.hh"

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PhysListEmStandard_option3::PhysListEmStandard_option3(const G4String& name,
                               DetectorConstruction* det)
: G4VPhysicsConstructor(name), fDetector(det)
{}

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PhysListEmStandard_option3::~PhysListEmStandard_option3()
{}

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void PhysListEmStandard_option3::ConstructProcess()
{
  // Add standard EM Processes
  //

  theParticleIterator->reset();
  while( (*theParticleIterator)() ){
    G4ParticleDefinition* particle = theParticleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();
    G4String particleName = particle->GetParticleName();
     
    if (particleName == "gamma") {
      // gamma
    
      G4ComptonScattering* compton = new G4ComptonScattering();
      MyKleinNishinaCompton* comptonModel = new MyKleinNishinaCompton(fDetector);
      comptonModel->SetCSFactor(1000.);      
      compton->SetModel(comptonModel );
            
      pmanager->AddDiscreteProcess(new G4PhotoElectricEffect);
      pmanager->AddDiscreteProcess(compton);
      pmanager->AddDiscreteProcess(new G4GammaConversion);
      
    } else if (particleName == "e-") {
      //electron
      G4eMultipleScattering* msc = new G4eMultipleScattering();
      msc->AddEmModel(0, new G4UrbanMscModel95());
            
      G4eIonisation* eIoni = new G4eIonisation();
      eIoni->SetEmModel(new MyMollerBhabhaModel);
                         
      pmanager->AddProcess(msc,                       -1, 1, 1);
      pmanager->AddProcess(eIoni,                     -1, 2, 2);
            
    } else if (particleName == "e+") {
      //positron
      G4eMultipleScattering* msc = new G4eMultipleScattering();
      msc->AddEmModel(0, new G4UrbanMscModel95());
            
      G4eIonisation* pIoni = new G4eIonisation();
      pIoni->SetEmModel(new MyMollerBhabhaModel);
                               
      pmanager->AddProcess(msc,                       -1, 1, 1);
      pmanager->AddProcess(pIoni,                     -1, 2, 2);
      pmanager->AddProcess(new G4eplusAnnihilation,    0,-1, 3);
             
    } else if( particleName == "proton" ) {
      //proton  
      pmanager->AddProcess(new G4hMultipleScattering, -1, 1, 1);
      pmanager->AddProcess(new G4hIonisation,         -1, 2, 2);
    }
  }

  // Em options
  //
  // Main options and setting parameters are shown here.
  // Several of them have default values.
  //
  G4EmProcessOptions emOptions;
  
  //physics tables
  //
  emOptions.SetMinEnergy(100*eV);        //default    
  emOptions.SetMaxEnergy(10*GeV);        //default  
  emOptions.SetDEDXBinning(8*20);        //default=8*7
  emOptions.SetLambdaBinning(8*20);      //default=8*7
      
  //multiple coulomb scattering
  //
  emOptions.SetMscStepLimitation(fUseDistanceToBoundary);  //default=fUseSafety
      
  //energy loss
  //
  emOptions.SetStepFunction(0.2, 10*um);        //default=(0.2, 1*mm)   
           
  //build CSDA range
  //
  emOptions.SetBuildCSDARange(true);            //default=false
  emOptions.SetMaxEnergyForCSDARange(10*GeV);  
  emOptions.SetDEDXBinningForCSDARange(8*20);   //default=8*7
          
  //ionization
  //
  emOptions.SetSubCutoff(false);         //default
}

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