ucn/src/ExUCNExtraPhysics.cc

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0024 // ********************************************************************
0025 //
0026 /// \file ExUCNExtraPhysics.cc
0027 /// \brief Implementation of the ExUCNExtraPhysics class
0028
0029 #include "ExUCNExtraPhysics.hh"
0030
0031 #include "G4Decay.hh"
0032 #include "G4DecayTable.hh"
0033 #include "G4NeutronBetaDecayChannel.hh"
0034 #include "G4ParticleDefinition.hh"
0035 #include "G4ProcessManager.hh"
0036 #include "G4StepLimiter.hh"
0037 #include "G4SystemOfUnits.hh"
0038 #include "G4Transportation.hh"
0039 #include "G4UCNAbsorption.hh"
0040 #include "G4UCNBoundaryProcess.hh"
0041 #include "G4UCNLoss.hh"
0042 #include "G4UCNMultiScattering.hh"
0043 #include "G4UserSpecialCuts.hh"
0044
0045 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0046
0047 ExUCNExtraPhysics::ExUCNExtraPhysics() : G4VPhysicsConstructor("Extra")
0048 {
0049   ;
0050 }
0051
0052 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0053
0054 ExUCNExtraPhysics::~ExUCNExtraPhysics()
0055 {
0056   ;
0057 }
0058
0059 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0060
0061 void ExUCNExtraPhysics::ConstructParticle()
0062 {
0063   ;
0064 }
0065
0066 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0067
0068 void ExUCNExtraPhysics::ConstructProcess()
0069 {
0070   auto particleIterator = GetParticleIterator();
0071   particleIterator->reset();
0072
0073   while ((*particleIterator)()) {
0074     G4ParticleDefinition* particle = particleIterator->value();
0075     G4ProcessManager* pmanager = particle->GetProcessManager();
0076     G4String particleName = particle->GetParticleName();
0077
0078     if (!pmanager) {
0079       std::ostringstream o;
0080       o << "Particle " << particleName << "without a Process Manager";
0081       G4Exception("ExUCNExtraPhysics::ConstructProcess()", "", FatalException, o.str().c_str());
0082     }
0083
0084     pmanager->AddDiscreteProcess(new G4StepLimiter());
0085     pmanager->AddDiscreteProcess(new G4UserSpecialCuts());
0086   }
0087
0088   ConstructUCN();
0089
0090   // G4Transportation::EnableMagneticMoment();
0091   G4Transportation::EnableGravity();
0092 }
0093
0094 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0095
0096 void ExUCNExtraPhysics::ConstructUCN()
0097 {
0098   auto particleIterator = GetParticleIterator();
0099   particleIterator->reset();
0100   G4ProcessManager* pmanager = NULL;
0101
0102   while ((*particleIterator)()) {
0103     G4ParticleDefinition* particle = particleIterator->value();
0104     pmanager = particle->GetProcessManager();
0105     G4String particleName = particle->GetParticleName();
0106
0107     if (!pmanager) {
0108       std::ostringstream o;
0109       o << "Particle " << particleName << "without a Process Manager";
0110       G4Exception("ExUCNExtraPhysics::ConstructProcess()", "", FatalException, o.str().c_str());
0111     }
0112
0113     if (particleName == "neutron") {
0114       pmanager->AddDiscreteProcess(new G4UCNLoss());
0115       pmanager->AddDiscreteProcess(new G4UCNAbsorption());
0116       pmanager->AddDiscreteProcess(new G4UCNMultiScattering());
0117
0118       G4UCNBoundaryProcess* ucnBoundaryProcess = new G4UCNBoundaryProcess();
0119       ucnBoundaryProcess->SetMicroRoughness(true);
0120       ucnBoundaryProcess->SetVerboseLevel(0);
0121
0122       pmanager->AddDiscreteProcess(ucnBoundaryProcess);
0123     }
0124   }
0125 }
0126
0127 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......