ACTARSim
ACTAR TPC Simulation Reference Guide
PhysListEmStandardSS.cc
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26 // $Id: PhysListEmStandardSS.cc,v 1.9 2011-01-05 19:02:39 vnivanch Exp $
27 // GEANT4 tag $Name: geant4-09-04-patch-02 $
28 //
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31 
32 #include "PhysListEmStandardSS.hh"
33 
34 #include "G4ParticleDefinition.hh"
35 #include "G4ParticleTable.hh"
36 #include "G4ProcessManager.hh"
37 
38 #include "G4ComptonScattering.hh"
39 #include "G4GammaConversion.hh"
40 #include "G4PhotoElectricEffect.hh"
41 
42 #include "G4CoulombScattering.hh"
43 #include "G4IonCoulombScatteringModel.hh"
44 
45 #include "G4eIonisation.hh"
46 #include "G4eBremsstrahlung.hh"
47 #include "G4eplusAnnihilation.hh"
48 
49 #include "G4MuIonisation.hh"
50 #include "G4MuBremsstrahlung.hh"
51 #include "G4MuPairProduction.hh"
52 
53 #include "G4hIonisation.hh"
54 #include "G4ionIonisation.hh"
55 
56 #include "G4EmProcessOptions.hh"
57 
58 #include "G4PhysicalConstants.hh"
59 #include "G4SystemOfUnits.hh"
60 
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62 
64  : G4VPhysicsConstructor(name)
65 {}
66 
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68 
70 {}
71 
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73 
75 {
76  // Add standard EM Processes
77  G4ParticleTable::G4PTblDicIterator* theParticleIterator = G4ParticleTable::GetParticleTable()->GetIterator();
78  theParticleIterator->reset();
79  while( (*theParticleIterator)() ){
80  G4ParticleDefinition* particle = theParticleIterator->value();
81  G4ProcessManager* pmanager = particle->GetProcessManager();
82  G4String particleName = particle->GetParticleName();
83 
84  if (particleName == "gamma") {
85  // gamma
86  pmanager->AddDiscreteProcess(new G4PhotoElectricEffect);
87  pmanager->AddDiscreteProcess(new G4ComptonScattering);
88  pmanager->AddDiscreteProcess(new G4GammaConversion);
89 
90  } else if (particleName == "e-") {
91  //electron
92  pmanager->AddDiscreteProcess(new G4CoulombScattering);
93  pmanager->AddProcess(new G4eIonisation, -1, 1, 1);
94  pmanager->AddProcess(new G4eBremsstrahlung, -1, 2, 2);
95 
96  } else if (particleName == "e+") {
97  //positron
98  pmanager->AddDiscreteProcess(new G4CoulombScattering);
99  pmanager->AddProcess(new G4eIonisation, -1, 1, 1);
100  pmanager->AddProcess(new G4eBremsstrahlung, -1, 2, 2);
101  pmanager->AddProcess(new G4eplusAnnihilation, 0,-1, 3);
102 
103  } else if (particleName == "mu+" ||
104  particleName == "mu-" ) {
105  //muon
106  pmanager->AddDiscreteProcess(new G4CoulombScattering);
107  pmanager->AddProcess(new G4MuIonisation, -1, 1, 1);
108  pmanager->AddProcess(new G4MuBremsstrahlung, -1, 2, 2);
109  pmanager->AddProcess(new G4MuPairProduction, -1, 3, 3);
110 
111  } else if (particleName == "alpha" || particleName == "He3") {
112  pmanager->AddProcess(new G4ionIonisation, -1, 1, 1);
113  G4CoulombScattering* cs = new G4CoulombScattering();
114  cs->AddEmModel(0, new G4IonCoulombScatteringModel());
115  cs->SetBuildTableFlag(false);
116  pmanager->AddDiscreteProcess(cs);
117 
118  } else if (particleName == "GenericIon" ) {
119  pmanager->AddProcess(new G4ionIonisation, -1, 1, 1);
120  G4CoulombScattering* cs = new G4CoulombScattering();
121  cs->AddEmModel(0, new G4IonCoulombScatteringModel());
122  cs->SetBuildTableFlag(false);
123  pmanager->AddDiscreteProcess(cs);
124 
125  } else if ((!particle->IsShortLived()) &&
126  (particle->GetPDGCharge() != 0.0) &&
127  (particle->GetParticleName() != "chargedgeantino")) {
128  //all others charged particles except geantino
129  pmanager->AddDiscreteProcess(new G4CoulombScattering);
130  pmanager->AddProcess(new G4hIonisation, -1, 1, 1);
131  }
132  }
133 
134  // Em options
135  //
136  // Main options and setting parameters are shown here.
137  // Several of them have default values.
138  //
139  G4EmProcessOptions emOptions;
140 
141  //physics tables
142  //
143  emOptions.SetMinEnergy(100*eV); //default
144  emOptions.SetMaxEnergy(100*TeV); //default
145  emOptions.SetDEDXBinning(12*20); //default=12*7
146  emOptions.SetLambdaBinning(12*20); //default=12*7
147  emOptions.SetSplineFlag(true); //default
148 
149  //energy loss
150  //
151  emOptions.SetStepFunction(0.2, 100*um); //default=(0.2, 1*mm)
152  emOptions.SetLinearLossLimit(1.e-2); //default
153 
154  //ionization
155  //
156  emOptions.SetSubCutoff(false); //default
157 
158  // scattering
159  emOptions.SetPolarAngleLimit(0.0);
160 }
161 
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PhysListEmStandardSS(const G4String &name="standardSS")