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18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
27 // Previous authors: G. Guerrieri and M. G. Pi << 27 // Code developed by:
28 // Authors (since 2007): S. Guatelli, Universi << 28 // S. Guatelli, G. Guerrieri and M. G. Pia
29 // 29 //
30 // 30 //
31 // 31 //
32 // ********************************** 32 // **********************************
33 // * * 33 // * *
34 // * G4HumanPhantomPhysicsList.cc 34 // * G4HumanPhantomPhysicsList.cc *
35 // * * 35 // * *
36 // ********************************** 36 // **********************************
37 // 37 //
>> 38 // $Id: G4HumanPhantomPhysicsList.cc,v 1.13 2010/11/16 15:28:49 allison Exp $
>> 39 // GEANT4 tag $Name: geant4-09-04 $
38 // 40 //
39 #include "G4HumanPhantomPhysicsList.hh" 41 #include "G4HumanPhantomPhysicsList.hh"
40 42
41 #include "G4SystemOfUnits.hh" <<
42 #include "G4ParticleDefinition.hh" 43 #include "G4ParticleDefinition.hh"
43 #include "G4ProductionCutsTable.hh" 44 #include "G4ProductionCutsTable.hh"
44 #include "G4ProcessManager.hh" 45 #include "G4ProcessManager.hh"
45 #include "G4ParticleTypes.hh" 46 #include "G4ParticleTypes.hh"
46 #include "G4UnitsTable.hh" 47 #include "G4UnitsTable.hh"
47 #include "G4ios.hh" 48 #include "G4ios.hh"
48 #include "G4VModularPhysicsList.hh" << 49 // gamma
49 #include "G4EmStandardPhysics_option4.hh" << 50 #include "G4PhotoElectricEffect.hh"
50 #include "G4DecayPhysics.hh" << 51 #include "G4LivermorePhotoElectricModel.hh"
>> 52
>> 53 #include "G4ComptonScattering.hh"
>> 54 #include "G4LivermoreComptonModel.hh"
>> 55
>> 56 #include "G4GammaConversion.hh"
>> 57 #include "G4LivermoreGammaConversionModel.hh"
>> 58
>> 59 #include "G4RayleighScattering.hh"
>> 60 #include "G4LivermoreRayleighModel.hh"
>> 61
>> 62 // e-
>> 63 #include "G4eMultipleScattering.hh"
>> 64 #include "G4eIonisation.hh"
>> 65 #include "G4LivermoreIonisationModel.hh"
>> 66 #include "G4eBremsstrahlung.hh"
>> 67 #include "G4LivermoreBremsstrahlungModel.hh"
>> 68
>> 69 // e+
>> 70 #include "G4eIonisation.hh"
>> 71 #include "G4eBremsstrahlung.hh"
>> 72 #include "G4eplusAnnihilation.hh"
51 73
52 G4HumanPhantomPhysicsList::G4HumanPhantomPhysi << 74 G4HumanPhantomPhysicsList::G4HumanPhantomPhysicsList(): G4VUserPhysicsList()
53 { 75 {
54 SetVerboseLevel(1); 76 SetVerboseLevel(1);
55 emPhysicsList = new G4EmStandardPhysics_opti <<
56 decPhysicsList = new G4DecayPhysics(); <<
57 // Alternatively you can substitute this physi <<
58 // with the LowEnergy Livermore or LowEnergy P <<
59 // emPhysicsList = new G4EmLivermorePhysics(); <<
60 // Low Energy based on Livermore Evaluated Dat <<
61 // <<
62 // Penelope physics <<
63 //emPhysicsList = new G4EmPenelopePhysics(); <<
64 } 77 }
65 78
66 G4HumanPhantomPhysicsList::~G4HumanPhantomPhys 79 G4HumanPhantomPhysicsList::~G4HumanPhantomPhysicsList()
67 { 80 {
68 delete decPhysicsList; <<
69 delete emPhysicsList; <<
70 } 81 }
71 82
72 void G4HumanPhantomPhysicsList::ConstructParti 83 void G4HumanPhantomPhysicsList::ConstructParticle()
73 { 84 {
74 decPhysicsList -> ConstructParticle(); << 85 // In this method, static member functions should be called
>> 86 // for all particles which you want to use.
>> 87 // This ensures that objects of these particle types will be
>> 88 // created in the program.
>> 89
>> 90 ConstructBosons();
>> 91 ConstructLeptons();
>> 92
>> 93 }
>> 94
>> 95 void G4HumanPhantomPhysicsList::ConstructBosons()
>> 96 {
>> 97 // photons
>> 98 G4Gamma::GammaDefinition();
>> 99 }
>> 100
>> 101 void G4HumanPhantomPhysicsList::ConstructLeptons()
>> 102 {
>> 103 // leptons
>> 104 G4Electron::ElectronDefinition();
>> 105 G4Positron::PositronDefinition();
75 } 106 }
76 107
77 void G4HumanPhantomPhysicsList::ConstructProce 108 void G4HumanPhantomPhysicsList::ConstructProcess()
78 { 109 {
79 AddTransportation(); 110 AddTransportation();
80 emPhysicsList -> ConstructProcess(); << 111 ConstructEM();
81 decPhysicsList -> ConstructProcess(); << 112 }
>> 113
>> 114 void G4HumanPhantomPhysicsList::ConstructEM()
>> 115 {
>> 116 theParticleIterator->reset();
>> 117
>> 118 while( (*theParticleIterator)() ){
>> 119
>> 120 G4ParticleDefinition* particle = theParticleIterator->value();
>> 121 G4ProcessManager* pmanager = particle->GetProcessManager();
>> 122 G4String particleName = particle->GetParticleName();
>> 123
>> 124 // Processes
>> 125
>> 126 if (particleName == "gamma") {
>> 127
>> 128 // Photon
>> 129 G4RayleighScattering* theRayleigh = new G4RayleighScattering();
>> 130 theRayleigh->SetModel(new G4LivermoreRayleighModel()); //not strictly necessary
>> 131 pmanager->AddDiscreteProcess(theRayleigh);
>> 132
>> 133 G4PhotoElectricEffect* thePhotoElectricEffect = new G4PhotoElectricEffect();
>> 134 thePhotoElectricEffect->SetModel(new G4LivermorePhotoElectricModel());
>> 135 pmanager->AddDiscreteProcess(thePhotoElectricEffect);
>> 136
>> 137 G4ComptonScattering* theComptonScattering = new G4ComptonScattering();
>> 138 theComptonScattering->SetModel(new G4LivermoreComptonModel());
>> 139 pmanager->AddDiscreteProcess(theComptonScattering);
>> 140
>> 141 G4GammaConversion* theGammaConversion = new G4GammaConversion();
>> 142 theGammaConversion->SetModel(new G4LivermoreGammaConversionModel());
>> 143 pmanager->AddDiscreteProcess(theGammaConversion);
>> 144
>> 145 } else if (particleName == "e-") {
>> 146 // Electron
>> 147
>> 148 G4eMultipleScattering* msc = new G4eMultipleScattering();
>> 149 msc->SetStepLimitType(fUseDistanceToBoundary);
>> 150 pmanager->AddProcess(msc,-1, 1, 1);
>> 151
>> 152 // Ionisation
>> 153 G4eIonisation* eIonisation = new G4eIonisation();
>> 154 eIonisation->SetEmModel(new G4LivermoreIonisationModel());
>> 155 eIonisation->SetStepFunction(0.2, 100*um); //improved precision in tracking
>> 156 pmanager->AddProcess(eIonisation,-1, 2, 2);
>> 157
>> 158 // Bremsstrahlung
>> 159 G4eBremsstrahlung* eBremsstrahlung = new G4eBremsstrahlung();
>> 160 eBremsstrahlung->SetEmModel(new G4LivermoreBremsstrahlungModel());
>> 161 pmanager->AddProcess(eBremsstrahlung, -1,-3, 3);
>> 162
>> 163 } else if (particleName == "e+") {
>> 164 // Positron
>> 165 G4eMultipleScattering* msc = new G4eMultipleScattering();
>> 166 msc->SetStepLimitType(fUseDistanceToBoundary);
>> 167 pmanager->AddProcess(msc,-1, 1, 1);
>> 168
>> 169 // Ionisation
>> 170 G4eIonisation* eIonisation = new G4eIonisation();
>> 171 eIonisation->SetStepFunction(0.2, 100*um); //
>> 172 pmanager->AddProcess(eIonisation, -1, 2, 2);
>> 173
>> 174 //Bremsstrahlung (use default, no low-energy available)
>> 175 pmanager->AddProcess(new G4eBremsstrahlung(), -1,-1, 3);
>> 176
>> 177 //Annihilation
>> 178 pmanager->AddProcess(new G4eplusAnnihilation(),0,-1, 4);
>> 179
>> 180 }
>> 181 }
82 } 182 }
83 183
84 void G4HumanPhantomPhysicsList::SetCuts() 184 void G4HumanPhantomPhysicsList::SetCuts()
85 { 185 {
86 // The production threshold is fixed to 0.1 186 // The production threshold is fixed to 0.1 mm for all the particles
87 // Secondary particles with a range bigger t 187 // Secondary particles with a range bigger than 0.1 mm
88 // are generated; otherwise their energy is 188 // are generated; otherwise their energy is considered deposited locally
89 189
90 defaultCutValue = 1. * mm; << 190 defaultCutValue = 0.1 * mm;
91 191
92 const G4double cutForGamma = defaultCutValue 192 const G4double cutForGamma = defaultCutValue;
93 const G4double cutForElectron = defaultCutVa 193 const G4double cutForElectron = defaultCutValue;
94 const G4double cutForPositron = defaultCutVa 194 const G4double cutForPositron = defaultCutValue;
95 195
96 SetCutValue(cutForGamma, "gamma"); 196 SetCutValue(cutForGamma, "gamma");
97 SetCutValue(cutForElectron, "e-"); 197 SetCutValue(cutForElectron, "e-");
98 SetCutValue(cutForPositron, "e+"); 198 SetCutValue(cutForPositron, "e+");
99 199
100 // Set the secondary production cut lower th 200 // Set the secondary production cut lower than 990. eV
101 // Very important for high precision of lowe 201 // Very important for high precision of lowenergy processes at low energies
102 202
103 G4double lowLimit = 250. * eV; 203 G4double lowLimit = 250. * eV;
104 G4double highLimit = 100. * GeV; 204 G4double highLimit = 100. * GeV;
105 G4ProductionCutsTable::GetProductionCutsTabl 205 G4ProductionCutsTable::GetProductionCutsTable()->SetEnergyRange(lowLimit, highLimit);
106 206
107 if (verboseLevel>0) DumpCutValuesTable(); 207 if (verboseLevel>0) DumpCutValuesTable();
108 } 208 }
109 209