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 "G4OpAbsorption.hh"
#include "G4OpRayleigh.hh"
#include "G4OpMieHG.hh"

#include "G4OpBoundaryProcess.hh"

#include "G4OpWLS.hh"
#include "G4Scintillation.hh"
#include "G4Cerenkov.hh"

#include "G4LossTableManager.hh"
#include "G4EmSaturation.hh"

#include "G4GenericMessenger.hh"

// factory
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4OpticalPhysics);


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G4OpticalPhysics::G4OpticalPhysics(G4int verbose, const G4String& name)
  : G4VPhysicsConstructor(name),

    fMaxNumPhotons(100),
    fMaxBetaChange(10.0),
    fYieldFactor(1.),
    fExcitationRatio(0.0),
    fProfile("delta"),
    fFiniteRiseTime(false),
    fScintillationByParticleType(false)
{
  verboseLevel = verbose;
  fMessenger = new G4OpticalPhysicsMessenger(this);

  for ( G4int i=0; i<kNoProcess; i++ ) {
    fProcessUse.push_back(true);
    fProcessTrackSecondariesFirst.push_back(true);
  }
}

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G4OpticalPhysics::~G4OpticalPhysics()
{
  delete fMessenger;
}

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void G4OpticalPhysics::PrintStatistics() const
{
// Print all processes activation and their parameters

  for ( G4int i=0; i<kNoProcess; i++ ) {
    G4cout << "  " << G4OpticalProcessName(i) << " process:  ";
    if ( ! fProcessUse[i] ) {
      G4cout << "not used" << G4endl;
    }
    else {
      G4cout << "used" << G4endl;
      if ( i == kCerenkov ) {
        G4cout << "    Max number of photons per step: " << fMaxNumPhotons << G4endl;
        G4cout << "    Max beta change per step:       " << fMaxBetaChange << G4endl;
        if ( fProcessTrackSecondariesFirst[kCerenkov] ) {
          G4cout << "    Track secondaries first:  activated" << G4endl;
        }
        else {  
          G4cout << "    Track secondaries first:  inactivated" << G4endl;
        }
      }
      if ( i == kScintillation ) {
        if (fScintillationByParticleType)
        G4cout << "    Scintillation by Particle Type:  activated " << G4endl;
        G4cout << "    Yield factor: "  << fYieldFactor << G4endl;
        G4cout << "    ExcitationRatio: " << fExcitationRatio << G4endl;
        if ( fProcessTrackSecondariesFirst[kScintillation] ) {
          G4cout << "    Track secondaries first:  activated" << G4endl;
        }
        else {  
          G4cout << "    Track secondaries first:  inactivated" << G4endl;
        }
      }
      if ( i == kWLS ) {
        G4cout << "     WLS process time profile: " << fProfile << G4endl;
      }
    }
  }
}

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#include "G4OpticalPhoton.hh"

void G4OpticalPhysics::ConstructParticle()
{

  // optical photon
  G4OpticalPhoton::OpticalPhotonDefinition();
}

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#define DIR_CMDS "/process/optical"
#define GUIDANCE "Commands related to the optical physics simulation engine for "

namespace UIhelpers {
    //Helper functions to create UI commands for processes

    template<class T>
    void buildCommands(T* proc,const char* dir, const char* guidance)
    {
        //Generic function to add a "verbose" command for a process
        G4GenericMessenger* mess = new G4GenericMessenger(proc,dir,guidance);
        G4AutoDelete::Register(mess);
        G4GenericMessenger::Command& wlscmd4 = mess->DeclareMethod("verbose",&T::SetVerboseLevel,
                                                                   "Set the verbose level");
        wlscmd4.SetParameterName("ver",true);
        wlscmd4.SetDefaultValue("1");
        wlscmd4.SetStates(G4State_Idle);
    }

    void buildCommands( G4OpWLS* op )
    {
        //Build UI commands for WLS
        G4GenericMessenger* mess = new G4GenericMessenger(op,DIR_CMDS"/wls/",GUIDANCE" for WLS process.");
        G4AutoDelete::Register(mess);
        //Here, more correctly DeclareProperty should be used, but to do that, I would need public/friend
        //access of G4GenericMessenger to private members of G4Scintillation. Thus I use the approach
        //of DeclareMethod, that has a draw back: range checking does not work
        G4GenericMessenger::Command& wlscmd1 = mess->DeclareMethod("setTimeProfile",&G4OpWLS::UseTimeProfile,
                                                                   "Set the WLS time profile (delta or exponential)");
        wlscmd1.SetParameterName("profile",false);
        wlscmd1.SetCandidates("delta exponential");
        wlscmd1.SetStates(G4State_Idle);
        buildCommands(op,DIR_CMDS"/wls/",GUIDANCE" for WLS process.");
    }
    
    void buildCommands(G4Scintillation* ScintillationProcess)
    {
        //Build UI commands for scintillation
        G4GenericMessenger* mess = new G4GenericMessenger(ScintillationProcess,DIR_CMDS"/scintillation/",GUIDANCE" for scintillation process.");
        G4AutoDelete::Register(mess);
        G4GenericMessenger::Command& sccmd1 = mess->DeclareMethod("setFiniteRiseTime",
                                                                  &G4Scintillation::SetFiniteRiseTime,
                                                                  "Set option of a finite rise-time for G4Scintillation - If set, the G4Scintillation process expects the user to have set the constant material property FAST/SLOWSCINTILLATIONRISETIME");
        sccmd1.SetParameterName("time",false);
        sccmd1.SetStates(G4State_Idle);
        
        G4GenericMessenger::Command& sccmd2 = mess->DeclareMethod("setYieldFactor",
                                                                  &G4Scintillation::SetScintillationYieldFactor,
                                                                  "Set scintillation yield factor");
        sccmd2.SetParameterName("factor",false);
        //sccmd2.SetRange("factor>=0."); //LIMITATION: w/ DeclareMethod range checking does not work
        sccmd2.SetStates(G4State_Idle);
        
        G4GenericMessenger::Command& sccmd3 = mess->DeclareMethod("setExcitationRatio",
                                                                  &G4Scintillation::SetScintillationExcitationRatio,
                                                                  "Set scintillation excitation ratio");
        sccmd3.SetParameterName("ratio",false);
        //sccmd3.SetRange("ratio>=0.&&ratio<=1.");//LIMITATION: w/ DeclareMethod range checking does not work
        sccmd3.SetStates(G4State_Idle);
        G4GenericMessenger::Command& sccmd4 = mess->DeclareMethod("setByParticleType",
                                                                  &G4Scintillation::SetScintillationByParticleType,
                                                                  "Activate/Inactivate scintillation process by particle type");
        sccmd4.SetParameterName("flag", false);
        sccmd4.SetStates(G4State_Idle);
        
        G4GenericMessenger::Command& sccmd5 = mess->DeclareMethod("setTrackSecondariesFirst",
                                                                  &G4Scintillation::SetTrackSecondariesFirst,
                                                                  "Set option to track secondaries before finishing their parent track");
        sccmd5.SetParameterName("flag",false);
        sccmd5.SetStates(G4State_Idle);
        
        buildCommands(ScintillationProcess,DIR_CMDS"/scintillation/",GUIDANCE" for scintillation process.");
    }
    
    void buildCommands(G4Cerenkov* CerenkovProcess)
    {
        //BUild UI commands for cerenkov
        G4GenericMessenger* mess = new G4GenericMessenger(CerenkovProcess,DIR_CMDS"/cerenkov/",GUIDANCE" for Cerenkov process.");
        G4AutoDelete::Register(mess);
        G4GenericMessenger::Command& cecmd1 = mess->DeclareMethod("setMaxPhotons",
                                                                  &G4Cerenkov::SetMaxNumPhotonsPerStep,
                                                                  "Set maximum number of photons per step");
        cecmd1.SetParameterName("max",false);
        //cecmd1.SetRange("max>=0");//LIMITATION: w/ DeclareMethod range checking does not work
        cecmd1.SetStates(G4State_Idle);
        
        G4GenericMessenger::Command& cecmd2 = mess->DeclareMethod("setMaxBetaChange",
                                                                  &G4Cerenkov::SetMaxBetaChangePerStep,
                                                                  "Set maximum change of beta of parent particle per step");
        cecmd2.SetParameterName("max",false);
        //cecmd2.SetRange("max>=0.");//LIMITATION: w/ DeclareMethod range checking does not work
        cecmd2.SetStates(G4State_Idle);
        
        G4GenericMessenger::Command& cecmd3 = mess->DeclareMethod("setTrackSecondariesFirst",
                                                                  &G4Cerenkov::SetTrackSecondariesFirst,
                                                                  "Set option to track secondaries before finishing their parent track");
        cecmd3.SetParameterName("flag",false);
        cecmd3.SetStates(G4State_Idle);
        
        buildCommands(CerenkovProcess,DIR_CMDS"/cerenkov/",GUIDANCE" for Cerenkov process.");
    }
}


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#include "G4Threading.hh"
#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"
#include "G4AutoDelete.hh"

void G4OpticalPhysics::ConstructProcess()
{
// Construct optical processes.

  if(verboseLevel>0)
         G4cout <<"G4OpticalPhysics:: Add Optical Physics Processes"<< G4endl;

  // A vector of optical processes
  std::vector<G4VProcess*> OpProcesses;

  for ( G4int i=0; i<kNoProcess; i++ ) OpProcesses.push_back(NULL);

  // Add Optical Processes

  G4OpAbsorption* OpAbsorptionProcess  = new G4OpAbsorption();
  UIhelpers::buildCommands(OpAbsorptionProcess,DIR_CMDS"/absorption/",GUIDANCE" for absorption process");
  OpProcesses[kAbsorption] = OpAbsorptionProcess;

  G4OpRayleigh* OpRayleighScatteringProcess = new G4OpRayleigh();
  UIhelpers::buildCommands(OpRayleighScatteringProcess,DIR_CMDS"/rayleigh/",GUIDANCE" for Reyleigh scattering process");
  OpProcesses[kRayleigh] = OpRayleighScatteringProcess;
    
  G4OpMieHG* OpMieHGScatteringProcess = new G4OpMieHG();
  UIhelpers::buildCommands(OpMieHGScatteringProcess,DIR_CMDS"/mie/",GUIDANCE" for Mie cattering process");
  OpProcesses[kMieHG] = OpMieHGScatteringProcess;

  G4OpBoundaryProcess* OpBoundaryProcess = new G4OpBoundaryProcess();
  UIhelpers::buildCommands(OpBoundaryProcess,DIR_CMDS"/boundary/",GUIDANCE" for boundary process");
  OpProcesses[kBoundary] = OpBoundaryProcess;

  G4OpWLS* OpWLSProcess = new G4OpWLS();
  OpWLSProcess->UseTimeProfile(fProfile);
  UIhelpers::buildCommands(OpWLSProcess);
  OpProcesses[kWLS] = OpWLSProcess;

  G4ProcessManager * pManager = 0;
  pManager = G4OpticalPhoton::OpticalPhoton()->GetProcessManager();

  if (!pManager) {
     std::ostringstream o;
     o << "Optical Photon without a Process Manager";
     G4Exception("G4OpticalPhysics::ConstructProcess()","",
                  FatalException,o.str().c_str());
     return;
  }

  for ( G4int i=kAbsorption; i<=kWLS; i++ ) {
      if ( fProcessUse[i] ) {
         pManager->AddDiscreteProcess(OpProcesses[i]);
      }
  }

  G4Scintillation* ScintillationProcess = new G4Scintillation();
  ScintillationProcess->SetScintillationYieldFactor(fYieldFactor);
  ScintillationProcess->SetScintillationExcitationRatio(fExcitationRatio);
  ScintillationProcess->SetFiniteRiseTime(fFiniteRiseTime);
  ScintillationProcess->SetScintillationByParticleType(fScintillationByParticleType);
  ScintillationProcess->SetTrackSecondariesFirst(fProcessTrackSecondariesFirst[kScintillation]);
  G4EmSaturation* emSaturation = G4LossTableManager::Instance()->EmSaturation();
  ScintillationProcess->AddSaturation(emSaturation);
  UIhelpers::buildCommands(ScintillationProcess);
  OpProcesses[kScintillation] = ScintillationProcess;
    
  G4Cerenkov* CerenkovProcess = new G4Cerenkov();
  CerenkovProcess->SetMaxNumPhotonsPerStep(fMaxNumPhotons);
  CerenkovProcess->SetMaxBetaChangePerStep(fMaxBetaChange);
  CerenkovProcess->SetTrackSecondariesFirst(fProcessTrackSecondariesFirst[kCerenkov]);
  UIhelpers::buildCommands(CerenkovProcess);
  OpProcesses[kCerenkov] = CerenkovProcess;

  aParticleIterator->reset();

  while( (*aParticleIterator)() ){

    G4ParticleDefinition* particle = aParticleIterator->value();
    G4String particleName = particle->GetParticleName();

    pManager = particle->GetProcessManager();
    if (!pManager) {
       std::ostringstream o;
       o << "Particle " << particleName << "without a Process Manager";
       G4Exception("G4OpticalPhysics::ConstructProcess()","",
                    FatalException,o.str().c_str());
       return;                 // else coverity complains for pManager use below            
    }

    if( CerenkovProcess->IsApplicable(*particle) &&
        fProcessUse[kCerenkov] ) {
          pManager->AddProcess(CerenkovProcess);
          pManager->SetProcessOrdering(CerenkovProcess,idxPostStep);
    }
    if( ScintillationProcess->IsApplicable(*particle) &&
        fProcessUse[kScintillation] ){
          pManager->AddProcess(ScintillationProcess);
          pManager->SetProcessOrderingToLast(ScintillationProcess,idxAtRest);
          pManager->SetProcessOrderingToLast(ScintillationProcess,idxPostStep);
    }

  }

  // Add verbose
  for ( G4int i=0; i<kNoProcess; i++ ) {
    if ( fProcessUse[i] ) OpProcesses[i]->SetVerboseLevel(verboseLevel);
  }

    if (verboseLevel > 1) PrintStatistics();
  if (verboseLevel > 0)
    G4cout << "### " << namePhysics << " physics constructed." << G4endl;
}

void G4OpticalPhysics::SetScintillationYieldFactor(G4double yieldFactor)
{

  fYieldFactor = yieldFactor;
  //G4Scintillation::SetScintillationYieldFactor(yieldFactor);
}

void G4OpticalPhysics::SetScintillationExcitationRatio(G4double excitationRatio)
{

  fExcitationRatio = excitationRatio;
//  G4Scintillation::SetScintillationExcitationRatio(excitationRatio);
}

void G4OpticalPhysics::SetMaxNumPhotonsPerStep(G4int maxNumPhotons)
{

  fMaxNumPhotons = maxNumPhotons;
//  G4Cerenkov::SetMaxNumPhotonsPerStep(maxNumPhotons);
}

void G4OpticalPhysics::SetMaxBetaChangePerStep(G4double maxBetaChange)
{

  fMaxBetaChange = maxBetaChange;
//  G4Cerenkov::SetMaxBetaChangePerStep(maxBetaChange);
}

void G4OpticalPhysics::SetWLSTimeProfile(G4String profile)
{
  fProfile = profile;
}

//void G4OpticalPhysics::AddScintillationSaturation(G4EmSaturation* saturation)
//{
//  G4Scintillation::AddSaturation(saturation);
//}

void G4OpticalPhysics::
             SetScintillationByParticleType(G4bool scintillationByParticleType)
{
  fScintillationByParticleType = scintillationByParticleType;
  //G4Scintillation::SetScintillationByParticleType(scintillationByParticleType);
}

void G4OpticalPhysics::SetTrackSecondariesFirst(G4OpticalProcessIndex index,
                                                G4bool trackSecondariesFirst)
{
  if ( index >= kNoProcess ) return;
  if ( fProcessTrackSecondariesFirst[index] == trackSecondariesFirst ) return;
  fProcessTrackSecondariesFirst[index] = trackSecondariesFirst;

//  if ( index == kCerenkov )
//     G4Cerenkov::SetTrackSecondariesFirst(trackSecondariesFirst);
//  if ( index == kScintillation)
//      G4Scintillation::SetTrackSecondariesFirst(trackSecondariesFirst);
}

void G4OpticalPhysics::SetFiniteRiseTime(G4bool finiteRiseTime)
{
  fFiniteRiseTime = finiteRiseTime;
  //G4Scintillation::SetFiniteRiseTime(finiteRiseTime);
} 

void G4OpticalPhysics::Configure(G4OpticalProcessIndex index, G4bool isUse)
{
  // Configure the physics constructor to use/not use a selected process.
  // This method can only be called in PreInit> phase (before execution of
  // ConstructProcess). The process is not added to particle's process manager
  // and so it cannot be re-activated later in Idle> phase with the command
  // /process/activate.

  if ( index >= kNoProcess ) return;
  if ( fProcessUse[index] == isUse ) return;
  fProcessUse[index] = isUse;
}

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