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25 // 25 //
26 // 26 //
>> 27 // $Id: G4UnknownDecay.cc,v 1.3 2006/06/29 19:31:40 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-08-01 $
27 // 29 //
28 // 30 //
29 // ------------------------------------------- 31 // --------------------------------------------------------------
30 // GEANT 4 class implementation file 32 // GEANT 4 class implementation file
31 // 33 //
32 // ------------------------------------------- 34 // ------------------------------------------------------------
33 // 35 //
34 36
35 #include "G4UnknownDecay.hh" 37 #include "G4UnknownDecay.hh"
36 <<
37 #include "G4PhysicalConstants.hh" <<
38 #include "G4SystemOfUnits.hh" <<
39 #include "G4DynamicParticle.hh" 38 #include "G4DynamicParticle.hh"
40 #include "G4DecayProducts.hh" 39 #include "G4DecayProducts.hh"
41 #include "G4PhysicsLogVector.hh" 40 #include "G4PhysicsLogVector.hh"
42 #include "G4ParticleChangeForDecay.hh" 41 #include "G4ParticleChangeForDecay.hh"
43 #include "G4DecayProcessType.hh" <<
44 42
45 // constructor 43 // constructor
46 G4UnknownDecay::G4UnknownDecay(const G4String& 44 G4UnknownDecay::G4UnknownDecay(const G4String& processName)
47 :G4VDiscretePro 45 :G4VDiscreteProcess(processName, fDecay),
48 verboseLevel(1), 46 verboseLevel(1),
49 HighestValue(2 47 HighestValue(20.0)
50 { 48 {
51 // set Process Sub Type <<
52 SetProcessSubType(static_cast<int>(DECAY_Unk <<
53 <<
54 #ifdef G4VERBOSE 49 #ifdef G4VERBOSE
55 if (GetVerboseLevel()>1) { 50 if (GetVerboseLevel()>1) {
56 G4cout << "G4UnknownDecay constructor " < << 51 G4cerr << "G4UnknownDecay constructor " << " Name:" << processName << G4endl;
57 } 52 }
58 #endif 53 #endif
59 pParticleChange = &fParticleChangeForDecay; 54 pParticleChange = &fParticleChangeForDecay;
60 } 55 }
61 56
62 G4UnknownDecay::~G4UnknownDecay() 57 G4UnknownDecay::~G4UnknownDecay()
63 { 58 {
64 } 59 }
65 60
66 G4bool G4UnknownDecay::IsApplicable(const G4Pa 61 G4bool G4UnknownDecay::IsApplicable(const G4ParticleDefinition& aParticleType)
67 { 62 {
68 if(aParticleType.GetParticleName()=="unknown 63 if(aParticleType.GetParticleName()=="unknown") return true;
69 return false; 64 return false;
70 } 65 }
71 66
72 G4double G4UnknownDecay::GetMeanFreePath(const 67 G4double G4UnknownDecay::GetMeanFreePath(const G4Track& /*aTrack*/,G4double, G4ForceCondition*)
73 { 68 {
74 return 0.0; << 69 // // get particle
>> 70 // const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
>> 71 //
>> 72 // // returns the mean free path in GEANT4 internal units
>> 73 // G4double pathlength;
>> 74 // G4double pTime = aParticle->GetPreAssignedDecayProperTime();
>> 75 // if(pTime<0.) pTime = DBL_MIN;
>> 76 // G4double aCtau = c_light * pTime;
>> 77 // G4double aMass = aParticle->GetMass();
>> 78 //
>> 79 // G4double rKineticEnergy = aParticle->GetKineticEnergy()/aMass;
>> 80 // if ( rKineticEnergy > HighestValue) {
>> 81 // // gamma >> 1
>> 82 // pathlength = ( rKineticEnergy + 1.0)* aCtau;
>> 83 // } else if ( rKineticEnergy < DBL_MIN ) {
>> 84 // // too slow particle
>> 85 // pathlength = DBL_MIN;
>> 86 // } else {
>> 87 // pathlength = (aParticle->GetTotalMomentum())/aMass*aCtau ;
>> 88 // }
>> 89 // return pathlength;
>> 90 return DBL_MIN;
75 } 91 }
76 92
77 void G4UnknownDecay::BuildPhysicsTable(const G 93 void G4UnknownDecay::BuildPhysicsTable(const G4ParticleDefinition&)
78 { 94 {
79 return; 95 return;
80 } 96 }
81 97
82 G4VParticleChange* G4UnknownDecay::DecayIt(con 98 G4VParticleChange* G4UnknownDecay::DecayIt(const G4Track& aTrack, const G4Step& )
83 { 99 {
84 // The DecayIt() method returns by pointer a 100 // The DecayIt() method returns by pointer a particle-change object.
85 // Units are expressed in GEANT4 internal un 101 // Units are expressed in GEANT4 internal units.
86 102
87 // Initialize ParticleChange 103 // Initialize ParticleChange
88 // all members of G4VParticleChange are 104 // all members of G4VParticleChange are set to equal to
89 // corresponding member in G4Track 105 // corresponding member in G4Track
90 fParticleChangeForDecay.Initialize(aTrack); 106 fParticleChangeForDecay.Initialize(aTrack);
91 107
92 // get particle 108 // get particle
93 const G4DynamicParticle* aParticle = aTrack. 109 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
94 110
95 //check if thePreAssignedDecayProducts exist 111 //check if thePreAssignedDecayProducts exists
96 const G4DecayProducts* o_products = (aPartic 112 const G4DecayProducts* o_products = (aParticle->GetPreAssignedDecayProducts());
97 G4bool isPreAssigned = (o_products != nullpt << 113 G4bool isPreAssigned = (o_products != 0);
98 G4DecayProducts* products = nullptr; << 114 G4DecayProducts* products = 0;
99 115
100 if (!isPreAssigned ){ 116 if (!isPreAssigned ){
101 fParticleChangeForDecay.SetNumberOfSeconda 117 fParticleChangeForDecay.SetNumberOfSecondaries(0);
102 // Kill the parent particle 118 // Kill the parent particle
103 fParticleChangeForDecay.ProposeTrackStatus 119 fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ;
104 fParticleChangeForDecay.ProposeLocalEnergy 120 fParticleChangeForDecay.ProposeLocalEnergyDeposit(0.0);
105 121
106 ClearNumberOfInteractionLengthLeft(); 122 ClearNumberOfInteractionLengthLeft();
107 return &fParticleChangeForDecay ; 123 return &fParticleChangeForDecay ;
108 } 124 }
109 125
110 // copy decay products 126 // copy decay products
111 products = new G4DecayProducts(*o_products); 127 products = new G4DecayProducts(*o_products);
112 128
113 // get parent particle information ......... 129 // get parent particle information ...................................
114 G4double ParentEnergy = aParticle->GetTot 130 G4double ParentEnergy = aParticle->GetTotalEnergy();
115 G4double ParentMass = aParticle->GetMas <<
116 if (ParentEnergy < ParentMass) { <<
117 ParentEnergy = ParentMass; <<
118 #ifdef G4VERBOSE <<
119 if (GetVerboseLevel()>1) { <<
120 G4cout << "G4UnknownDecay::DoIt : Total <<
121 G4cout << " Particle: " << aParticle->Ge <<
122 G4cout << " Energy:" << ParentEnergy/ <<
123 G4cout << " Mass:" << ParentMass/MeV <<
124 G4cout << G4endl; <<
125 } <<
126 #endif <<
127 } <<
128 G4ThreeVector ParentDirection(aParticle->Get 131 G4ThreeVector ParentDirection(aParticle->GetMomentumDirection());
129 132
130 G4double energyDeposit = 0.0; 133 G4double energyDeposit = 0.0;
131 G4double finalGlobalTime = aTrack.GetGlobalT 134 G4double finalGlobalTime = aTrack.GetGlobalTime();
132 //boost all decay products to laboratory fra 135 //boost all decay products to laboratory frame
133 //if the particle has traveled 136 //if the particle has traveled
134 if(aParticle->GetPreAssignedDecayProperTime( << 137 if(aParticle->GetPreAssignedDecayProperTime()>0.) {
135 products->Boost( ParentEnergy, ParentDirec 138 products->Boost( ParentEnergy, ParentDirection);
136 } 139 }
137 140
138 //add products in fParticleChangeForDecay 141 //add products in fParticleChangeForDecay
139 G4int numberOfSecondaries = products->entrie 142 G4int numberOfSecondaries = products->entries();
140 fParticleChangeForDecay.SetNumberOfSecondari 143 fParticleChangeForDecay.SetNumberOfSecondaries(numberOfSecondaries);
141 #ifdef G4VERBOSE 144 #ifdef G4VERBOSE
142 if (GetVerboseLevel()>1) { 145 if (GetVerboseLevel()>1) {
143 G4cout << "G4UnknownDecay::DoIt : Decay v << 146 G4cerr << "G4UnknownDecay::DoIt : Decay vertex :";
144 G4cout << " Time: " << finalGlobalTime/ns << 147 G4cerr << " Time: " << finalGlobalTime/ns << "[ns]";
145 G4cout << " X:" << (aTrack.GetPosition()). << 148 G4cerr << " X:" << (aTrack.GetPosition()).x() /cm << "[cm]";
146 G4cout << " Y:" << (aTrack.GetPosition()). << 149 G4cerr << " Y:" << (aTrack.GetPosition()).y() /cm << "[cm]";
147 G4cout << " Z:" << (aTrack.GetPosition()). << 150 G4cerr << " Z:" << (aTrack.GetPosition()).z() /cm << "[cm]";
148 G4cout << G4endl; << 151 G4cerr << G4endl;
149 G4cout << "G4UnknownDecay::DoIt : decay p << 152 G4cerr << "G4UnknownDecay::DoIt : decay products in Lab. Frame" << G4endl;
150 products->DumpInfo(); 153 products->DumpInfo();
151 } 154 }
152 #endif 155 #endif
153 G4int index; 156 G4int index;
154 G4ThreeVector currentPosition; 157 G4ThreeVector currentPosition;
155 const G4TouchableHandle thand = aTrack.GetTo 158 const G4TouchableHandle thand = aTrack.GetTouchableHandle();
156 for (index=0; index < numberOfSecondaries; i << 159 for (index=0; index < numberOfSecondaries; index++)
157 // get current position of the track << 160 {
158 currentPosition = aTrack.GetPosition(); << 161 // get current position of the track
159 // create a new track object << 162 currentPosition = aTrack.GetPosition();
160 G4Track* secondary = new G4Track( products << 163 // create a new track object
>> 164 G4Track* secondary = new G4Track( products->PopProducts(),
161 finalGlobalTime , 165 finalGlobalTime ,
162 currentPosition ); 166 currentPosition );
163 // switch on good for tracking flag << 167 // switch on good for tracking flag
164 secondary->SetGoodForTrackingFlag(); << 168 secondary->SetGoodForTrackingFlag();
165 secondary->SetTouchableHandle(thand); << 169 secondary->SetTouchableHandle(thand);
166 // add the secondary track in the List << 170 // add the secondary track in the List
167 fParticleChangeForDecay.AddSecondary(secon << 171 fParticleChangeForDecay.AddSecondary(secondary);
168 } 172 }
169 delete products; 173 delete products;
170 << 174
171 // Kill the parent particle 175 // Kill the parent particle
172 fParticleChangeForDecay.ProposeTrackStatus( 176 fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ;
173 fParticleChangeForDecay.ProposeLocalEnergyDe 177 fParticleChangeForDecay.ProposeLocalEnergyDeposit(energyDeposit);
174 fParticleChangeForDecay.ProposeGlobalTime( f 178 fParticleChangeForDecay.ProposeGlobalTime( finalGlobalTime );
175 // reset NumberOfInteractionLengthLeft 179 // reset NumberOfInteractionLengthLeft
176 ClearNumberOfInteractionLengthLeft(); 180 ClearNumberOfInteractionLengthLeft();
177 181
178 return &fParticleChangeForDecay ; 182 return &fParticleChangeForDecay ;
179 } 183 }
180 184
181 void G4UnknownDecay::ProcessDescription(std::o <<
182 { <<
183 outFile << GetProcessName() <<
184 << ": Decay of 'unknown' particles. \n" <<
185 << "kinematics of daughters are dertermine <<
186 << "by PreAssignedDecayProducts. \n"; <<
187 } <<
188 185
189 186
190 187
191 188
192 189
193 190