TransitionRadiationPhysics.cc

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// $Id: TransitionRadiationPhysics.cc 85047 2014-10-23 13:06:38Z maire $
//
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#include "TransitionRadiationPhysics.hh"
#include "DetectorConstruction.hh"
#include "G4VXTRenergyLoss.hh"
#include "G4ProcessManager.hh"
#include "G4Electron.hh"
#include "G4Positron.hh"

#include "G4VXTRenergyLoss.hh"
#include "G4RegularXTRadiator.hh"
#include "G4TransparentRegXTRadiator.hh"
#include "G4GammaXTRadiator.hh"
#include "G4StrawTubeXTRadiator.hh"

#include "G4XTRGammaRadModel.hh"
#include "G4XTRRegularRadModel.hh"
#include "G4XTRTransparentRegRadModel.hh"
#include "XTRTransparentRegRadModel.hh"

G4ThreadLocal 
G4VXTRenergyLoss* TransitionRadiationPhysics::fXTRProcess = nullptr;

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TransitionRadiationPhysics::TransitionRadiationPhysics(G4int verb,
    DetectorConstruction* ptr) 
  : G4VPhysicsConstructor("XTR"), 
    fDetector(ptr), 
    fVerbose(verb),
    fXTRModel("transpM")
{}

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TransitionRadiationPhysics::~TransitionRadiationPhysics()
{}

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void TransitionRadiationPhysics::ConstructProcess()
{
  if("dummy" == fXTRModel) { return; }
  if(0 < fVerbose) {
    G4cout<< "TransitionRadiationPhysics: XTR model <" << fXTRModel
          << ">" <<G4endl;
  }
  RadiatorDescription* rDescription = fDetector->GetRadiatorDescription();

  if(fXTRModel == "gammaR" ) {      

    fXTRProcess = new G4GammaXTRadiator(rDescription->fLogicalVolume,
                                        100., 100.,
                                        rDescription->fFoilMaterial,
                                        rDescription->fGasMaterial,
                                        rDescription->fFoilThickness,
                                        rDescription->fGasThickness,
                                        rDescription->fFoilNumber,
                                        "GammaXTRadiator");
  }
  else if(fXTRModel == "gammaM" ) 
  {
    fXTRProcess = new G4XTRGammaRadModel(rDescription->fLogicalVolume,
                                         100., 100.,
                                         rDescription->fFoilMaterial,
                                         rDescription->fGasMaterial,
                                         rDescription->fFoilThickness,
                                         rDescription->fGasThickness,
                                         rDescription->fFoilNumber,
                                         "GammaXTRadiator");
  }
  else if(fXTRModel == "strawR" ) 
  {
    fXTRProcess = new G4StrawTubeXTRadiator(rDescription->fLogicalVolume,
                                            rDescription->fFoilMaterial,
                                            rDescription->fGasMaterial,
                                            0.53,
                                            3.14159,
                                            fDetector->GetAbsorberMaterial(),
                                            true,
                                            "strawXTRadiator");
  }
  else if(fXTRModel == "regR" ) 
  {      
    fXTRProcess = new G4RegularXTRadiator(rDescription->fLogicalVolume,
                                          rDescription->fFoilMaterial,
                                          rDescription->fGasMaterial,
                                          rDescription->fFoilThickness,
                                          rDescription->fGasThickness,
                                          rDescription->fFoilNumber,
                                          "RegularXTRadiator");            
  }
  else if(fXTRModel == "transpR" ) 
  {
    // G4TransparentRegXTRadiator* 
    fXTRProcess = new G4TransparentRegXTRadiator(rDescription->fLogicalVolume,
                                         rDescription->fFoilMaterial,
                                         rDescription->fGasMaterial,
                                         rDescription->fFoilThickness,
                                         rDescription->fGasThickness,
                                         rDescription->fFoilNumber,
                                         "RegularXTRadiator");
  }
  else if(fXTRModel == "regM" ) 
  {
    fXTRProcess = new G4XTRRegularRadModel(rDescription->fLogicalVolume,
                                           rDescription->fFoilMaterial,
                                           rDescription->fGasMaterial,
                                           rDescription->fFoilThickness,
                                           rDescription->fGasThickness,
                                           rDescription->fFoilNumber,
                                           "RegularXTRadiator");
       
  }
  else if(fXTRModel == "transpM" ) 
  { 
    fXTRProcess = new XTRTransparentRegRadModel(rDescription->fLogicalVolume,
                                                rDescription->fFoilMaterial,
                                                rDescription->fGasMaterial,
                                                rDescription->fFoilThickness,
                                                rDescription->fGasThickness,
                                                rDescription->fFoilNumber,
                                                "RegularXTRadiator");
  }     
  if(!fXTRProcess) { 
    if(0 < fVerbose) {
      G4cout<< "TransitionRadiationPhysics: XTR model <" << fXTRModel
            << "> is not known - no XTR process defined" <<G4endl;
    }
    return; 
  }

  fXTRProcess->SetVerboseLevel(fVerbose);

  G4Electron* elec = G4Electron::Electron();
  G4ProcessManager* manager = elec->GetProcessManager();
  manager->AddDiscreteProcess(fXTRProcess);

  G4Positron* posi = G4Positron::Positron();
  manager = posi->GetProcessManager();
  manager->AddDiscreteProcess(fXTRProcess);
}

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