Geant4  9.6.p02
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F06ExtraPhysics.cc
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31 
32 #include "globals.hh"
33 #include "G4ParticleDefinition.hh"
34 #include "G4ParticleTable.hh"
35 #include "G4ProcessManager.hh"
36 
37 #include "G4Decay.hh"
38 #include "G4DecayTable.hh"
40 
41 #include "G4UserSpecialCuts.hh"
42 #include "G4StepLimiter.hh"
43 #include "G4SystemOfUnits.hh"
44 
45 #include "F06ExtraPhysics.hh"
46 
48  : G4VPhysicsConstructor("Extra") {;}
49 
51 
53 
55 {
57 
58  while ((*theParticleIterator)()) {
60  G4ProcessManager* pmanager = particle->GetProcessManager();
61  G4String particleName = particle->GetParticleName();
62 
63  if (!pmanager) {
64  std::ostringstream o;
65  o << "Particle " << particleName << "without a Process Manager";
66  G4Exception("F06ExtraPhysics::ConstructProcess()","",
67  FatalException,o.str().c_str());
68  }
69 
70  pmanager->AddDiscreteProcess(new G4StepLimiter());
71  pmanager->AddDiscreteProcess(new G4UserSpecialCuts());
72  }
73 
74  AddBetaDecay();
75 }
76 
77 void F06ExtraPhysics::AddBetaDecay()
78 {
80 
81  while ((*theParticleIterator)()) {
82 
84  G4String particleName = particle->GetParticleName();
85 
86  if (particleName == "neutron") {
87 
88  particle->SetPDGLifeTime(885.7*second);
89  particle->SetPDGStable(false);
90 
91  G4DecayTable * table = new G4DecayTable();
92  G4VDecayChannel* mode = new G4NeutronBetaDecayChannel("neutron",1.00);
93  table->Insert(mode);
94  particle->SetDecayTable(table);
95 
96  G4ProcessManager* pmanager = particle->GetProcessManager();
97  if (!pmanager) {
98  std::ostringstream o;
99  o << "Particle " << particleName << "without a Process Manager";
100  G4Exception("F06ExtraPhysics::ConstructProcess()","",
101  FatalException,o.str().c_str());
102  }
103 
104  G4Decay* theDecayProcess = new G4Decay();
105  pmanager->AddProcess(theDecayProcess);
106  pmanager->SetProcessOrdering(theDecayProcess,idxPostStep);
107  pmanager->SetProcessOrdering(theDecayProcess,idxAtRest);
108 
109  break;
110  }
111  }
112 }