G4OpticalPhysics.cc

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//
//---------------------------------------------------------------------------
//
// ClassName:   G4OpticalPhysics
//
// Author:      P.Gumplinger 30.09.2009
//
// Modified:    P.Gumplinger 29.09.2011
//              (based on code from I. Hrivnacova)
//
//----------------------------------------------------------------------------
//
 
#include "G4OpticalPhysics.hh"
 
#include "G4Cerenkov.hh"
#include "G4GeneralCerenkov.hh"
#include "G4EmSaturation.hh"
#include "G4LossTableManager.hh"
#include "G4OpAbsorption.hh"
#include "G4OpBoundaryProcess.hh"
#include "G4OpRayleigh.hh"
#include "G4OpMieHG.hh"
#include "G4OpticalParameters.hh"
#include "G4OpWLS.hh"
#include "G4OpWLS2.hh"
#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"
#include "G4QuasiOpticalPhoton.hh"
#include "G4Scintillation.hh"
 
// factory
#include "G4PhysicsConstructorFactory.hh"
G4_DECLARE_PHYSCONSTR_FACTORY(G4OpticalPhysics);
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4OpticalPhysics::G4OpticalPhysics(G4int verbose, const G4String& name)
  : G4VPhysicsConstructor(name)
{
  verboseLevel = verbose;
  G4OpticalParameters::Instance()->SetVerboseLevel(verboseLevel);
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4OpticalPhysics::PrintStatistics() const
{
  G4OpticalParameters::Instance()->Dump();
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4OpticalPhysics::ConstructParticle()
{
  G4OpticalPhoton::OpticalPhotonDefinition();
  // Add G4QuasiOpticalPhoton to support offloading optical photon generation
  G4QuasiOpticalPhoton::QuasiOpticalPhotonDefinition();
}
 
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void G4OpticalPhysics::ConstructProcess()
{
  if(verboseLevel > 0)
    G4cout << "G4OpticalPhysics:: Add Optical Physics Processes" << G4endl;
 
  auto params = G4OpticalParameters::Instance();
 
  // Add Optical Processes
 
  G4ProcessManager* pManager =
    G4OpticalPhoton::OpticalPhoton()->GetProcessManager();
  if (nullptr == pManager)
  {
    G4ExceptionDescription ed;
    ed << "Optical Photon without a Process Manager";
    G4Exception("G4OpticalPhysics::ConstructProcess()", "", FatalException, ed);
    return;
  }
 
  if (params->GetProcessActivation("OpAbsorption")) {
    auto absorption = new G4OpAbsorption();
    pManager->AddDiscreteProcess(absorption);
  }
 
  if (params->GetProcessActivation("OpRayleigh")) {
    auto rayleigh = new G4OpRayleigh();
    pManager->AddDiscreteProcess(rayleigh);
  }
 
  if (params->GetProcessActivation("OpMieHG")) {
    auto mie = new G4OpMieHG();
    pManager->AddDiscreteProcess(mie);
  }
 
  if (params->GetProcessActivation("OpBoundary")) {
    auto boundary = new G4OpBoundaryProcess();
    pManager->AddDiscreteProcess(boundary);
  }
 
  if (params->GetProcessActivation("OpWLS")) {
    auto wls = new G4OpWLS();
    pManager->AddDiscreteProcess(wls);
  }
 
  if (params->GetProcessActivation("OpWLS2")) {
    auto wls2 = new G4OpWLS2();
    pManager->AddDiscreteProcess(wls2);
  }
 
  G4VProcess* theCerenkov{nullptr};
  if (params->CerenkovGeneral()) {
    auto ptr = new G4GeneralCerenkov();
    theCerenkov = ptr;
  }
  else if (params->GetProcessActivation("Cerenkov")) {
    auto ptr = new G4Cerenkov();
    theCerenkov = ptr;
  }
 
  G4VProcess* theScint{nullptr};
  if (params->GetProcessActivation("Scintillation")) {
    auto scint = new G4Scintillation();
    G4EmSaturation* emSaturation = G4LossTableManager::Instance()->EmSaturation();
    scint->AddSaturation(emSaturation);
    theScint = scint;
  }
 
  auto myParticleIterator = GetParticleIterator();
  myParticleIterator->reset();
 
  while((*myParticleIterator)())
  {
    auto particle = myParticleIterator->value();
    if (particle->IsShortLived()) { continue; }
 
    pManager = particle->GetProcessManager();
    if (nullptr == pManager) {
      G4ExceptionDescription ed;
      ed << "Particle " << particle->GetParticleName() << "without a Process Manager";
      G4Exception("G4OpticalPhysics::ConstructProcess()", "", FatalException,
                  ed);
      return;  // else coverity complains for pManager use below
    }
 
    if (nullptr != theCerenkov && theCerenkov->IsApplicable(*particle)) {
      pManager->AddDiscreteProcess(theCerenkov);
    }
    
    if (nullptr != theScint && theScint->IsApplicable(*particle)) {
      pManager->AddProcess(theScint);
      pManager->SetProcessOrderingToLast(theScint, idxAtRest);
      pManager->SetProcessOrderingToLast(theScint, idxPostStep);
    }
  }
 
  if(verboseLevel > 1)
    PrintStatistics();
  if(verboseLevel > 0)
    G4cout << "### " << namePhysics << " physics constructed." << G4endl;
}