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1 // 1 //
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24 // ******************************************* 21 // ********************************************************************
25 // 22 //
26 // 23 //
>> 24 // $Id: G4UnknownDecay.cc,v 1.2 2004/10/19 00:56:34 kurasige Exp $
>> 25 // GEANT4 tag $Name: geant4-07-00-cand-01 $
27 // 26 //
28 // 27 //
29 // ------------------------------------------- 28 // --------------------------------------------------------------
30 // GEANT 4 class implementation file 29 // GEANT 4 class implementation file
31 // 30 //
32 // ------------------------------------------- 31 // ------------------------------------------------------------
33 // 32 //
34 33
35 #include "G4UnknownDecay.hh" 34 #include "G4UnknownDecay.hh"
36 <<
37 #include "G4PhysicalConstants.hh" <<
38 #include "G4SystemOfUnits.hh" <<
39 #include "G4DynamicParticle.hh" 35 #include "G4DynamicParticle.hh"
40 #include "G4DecayProducts.hh" 36 #include "G4DecayProducts.hh"
41 #include "G4PhysicsLogVector.hh" 37 #include "G4PhysicsLogVector.hh"
42 #include "G4ParticleChangeForDecay.hh" 38 #include "G4ParticleChangeForDecay.hh"
43 #include "G4DecayProcessType.hh" <<
44 39
45 // constructor 40 // constructor
46 G4UnknownDecay::G4UnknownDecay(const G4String& 41 G4UnknownDecay::G4UnknownDecay(const G4String& processName)
47 :G4VDiscretePro 42 :G4VDiscreteProcess(processName, fDecay),
48 verboseLevel(1), 43 verboseLevel(1),
49 HighestValue(2 44 HighestValue(20.0)
50 { 45 {
51 // set Process Sub Type <<
52 SetProcessSubType(static_cast<int>(DECAY_Unk <<
53 <<
54 #ifdef G4VERBOSE 46 #ifdef G4VERBOSE
55 if (GetVerboseLevel()>1) { 47 if (GetVerboseLevel()>1) {
56 G4cout << "G4UnknownDecay constructor " < << 48 G4cerr << "G4UnknownDecay constructor " << " Name:" << processName << G4endl;
57 } 49 }
58 #endif 50 #endif
59 pParticleChange = &fParticleChangeForDecay; 51 pParticleChange = &fParticleChangeForDecay;
60 } 52 }
61 53
62 G4UnknownDecay::~G4UnknownDecay() 54 G4UnknownDecay::~G4UnknownDecay()
63 { 55 {
64 } 56 }
65 57
66 G4bool G4UnknownDecay::IsApplicable(const G4Pa 58 G4bool G4UnknownDecay::IsApplicable(const G4ParticleDefinition& aParticleType)
67 { 59 {
68 if(aParticleType.GetParticleName()=="unknown 60 if(aParticleType.GetParticleName()=="unknown") return true;
69 return false; 61 return false;
70 } 62 }
71 63
72 G4double G4UnknownDecay::GetMeanFreePath(const 64 G4double G4UnknownDecay::GetMeanFreePath(const G4Track& /*aTrack*/,G4double, G4ForceCondition*)
73 { 65 {
74 return 0.0; << 66 // // get particle
>> 67 // const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
>> 68 //
>> 69 // // returns the mean free path in GEANT4 internal units
>> 70 // G4double pathlength;
>> 71 // G4double pTime = aParticle->GetPreAssignedDecayProperTime();
>> 72 // if(pTime<0.) pTime = DBL_MIN;
>> 73 // G4double aCtau = c_light * pTime;
>> 74 // G4double aMass = aParticle->GetMass();
>> 75 //
>> 76 // G4double rKineticEnergy = aParticle->GetKineticEnergy()/aMass;
>> 77 // if ( rKineticEnergy > HighestValue) {
>> 78 // // gamma >> 1
>> 79 // pathlength = ( rKineticEnergy + 1.0)* aCtau;
>> 80 // } else if ( rKineticEnergy < DBL_MIN ) {
>> 81 // // too slow particle
>> 82 // pathlength = DBL_MIN;
>> 83 // } else {
>> 84 // pathlength = (aParticle->GetTotalMomentum())/aMass*aCtau ;
>> 85 // }
>> 86 // return pathlength;
>> 87 return DBL_MIN;
75 } 88 }
76 89
77 void G4UnknownDecay::BuildPhysicsTable(const G 90 void G4UnknownDecay::BuildPhysicsTable(const G4ParticleDefinition&)
78 { 91 {
79 return; 92 return;
80 } 93 }
81 94
82 G4VParticleChange* G4UnknownDecay::DecayIt(con 95 G4VParticleChange* G4UnknownDecay::DecayIt(const G4Track& aTrack, const G4Step& )
83 { 96 {
84 // The DecayIt() method returns by pointer a 97 // The DecayIt() method returns by pointer a particle-change object.
85 // Units are expressed in GEANT4 internal un 98 // Units are expressed in GEANT4 internal units.
86 99
87 // Initialize ParticleChange 100 // Initialize ParticleChange
88 // all members of G4VParticleChange are 101 // all members of G4VParticleChange are set to equal to
89 // corresponding member in G4Track 102 // corresponding member in G4Track
90 fParticleChangeForDecay.Initialize(aTrack); 103 fParticleChangeForDecay.Initialize(aTrack);
91 104
92 // get particle 105 // get particle
93 const G4DynamicParticle* aParticle = aTrack. 106 const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
94 107
95 //check if thePreAssignedDecayProducts exist 108 //check if thePreAssignedDecayProducts exists
96 const G4DecayProducts* o_products = (aPartic 109 const G4DecayProducts* o_products = (aParticle->GetPreAssignedDecayProducts());
97 G4bool isPreAssigned = (o_products != nullpt << 110 G4bool isPreAssigned = (o_products != 0);
98 G4DecayProducts* products = nullptr; << 111 G4DecayProducts* products = 0;
99 112
100 if (!isPreAssigned ){ 113 if (!isPreAssigned ){
101 fParticleChangeForDecay.SetNumberOfSeconda 114 fParticleChangeForDecay.SetNumberOfSecondaries(0);
102 // Kill the parent particle 115 // Kill the parent particle
103 fParticleChangeForDecay.ProposeTrackStatus 116 fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ;
104 fParticleChangeForDecay.ProposeLocalEnergy 117 fParticleChangeForDecay.ProposeLocalEnergyDeposit(0.0);
105 118
106 ClearNumberOfInteractionLengthLeft(); 119 ClearNumberOfInteractionLengthLeft();
107 return &fParticleChangeForDecay ; 120 return &fParticleChangeForDecay ;
108 } 121 }
109 122
110 // copy decay products 123 // copy decay products
111 products = new G4DecayProducts(*o_products); 124 products = new G4DecayProducts(*o_products);
112 125
113 // get parent particle information ......... 126 // get parent particle information ...................................
114 G4double ParentEnergy = aParticle->GetTot 127 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 128 G4ThreeVector ParentDirection(aParticle->GetMomentumDirection());
129 129
130 G4double energyDeposit = 0.0; 130 G4double energyDeposit = 0.0;
131 G4double finalGlobalTime = aTrack.GetGlobalT 131 G4double finalGlobalTime = aTrack.GetGlobalTime();
132 //boost all decay products to laboratory fra 132 //boost all decay products to laboratory frame
133 //if the particle has traveled 133 //if the particle has traveled
134 if(aParticle->GetPreAssignedDecayProperTime( << 134 if(aParticle->GetPreAssignedDecayProperTime()>0.) {
135 products->Boost( ParentEnergy, ParentDirec 135 products->Boost( ParentEnergy, ParentDirection);
136 } 136 }
137 137
138 //add products in fParticleChangeForDecay 138 //add products in fParticleChangeForDecay
139 G4int numberOfSecondaries = products->entrie 139 G4int numberOfSecondaries = products->entries();
140 fParticleChangeForDecay.SetNumberOfSecondari 140 fParticleChangeForDecay.SetNumberOfSecondaries(numberOfSecondaries);
141 #ifdef G4VERBOSE 141 #ifdef G4VERBOSE
142 if (GetVerboseLevel()>1) { 142 if (GetVerboseLevel()>1) {
143 G4cout << "G4UnknownDecay::DoIt : Decay v << 143 G4cerr << "G4UnknownDecay::DoIt : Decay vertex :";
144 G4cout << " Time: " << finalGlobalTime/ns << 144 G4cerr << " Time: " << finalGlobalTime/ns << "[ns]";
145 G4cout << " X:" << (aTrack.GetPosition()). << 145 G4cerr << " X:" << (aTrack.GetPosition()).x() /cm << "[cm]";
146 G4cout << " Y:" << (aTrack.GetPosition()). << 146 G4cerr << " Y:" << (aTrack.GetPosition()).y() /cm << "[cm]";
147 G4cout << " Z:" << (aTrack.GetPosition()). << 147 G4cerr << " Z:" << (aTrack.GetPosition()).z() /cm << "[cm]";
148 G4cout << G4endl; << 148 G4cerr << G4endl;
149 G4cout << "G4UnknownDecay::DoIt : decay p << 149 G4cerr << "G4UnknownDecay::DoIt : decay products in Lab. Frame" << G4endl;
150 products->DumpInfo(); 150 products->DumpInfo();
151 } 151 }
152 #endif 152 #endif
153 G4int index; 153 G4int index;
154 G4ThreeVector currentPosition; 154 G4ThreeVector currentPosition;
155 const G4TouchableHandle thand = aTrack.GetTo 155 const G4TouchableHandle thand = aTrack.GetTouchableHandle();
156 for (index=0; index < numberOfSecondaries; i << 156 for (index=0; index < numberOfSecondaries; index++)
157 // get current position of the track << 157 {
158 currentPosition = aTrack.GetPosition(); << 158 // get current position of the track
159 // create a new track object << 159 currentPosition = aTrack.GetPosition();
160 G4Track* secondary = new G4Track( products << 160 // create a new track object
>> 161 G4Track* secondary = new G4Track( products->PopProducts(),
161 finalGlobalTime , 162 finalGlobalTime ,
162 currentPosition ); 163 currentPosition );
163 // switch on good for tracking flag << 164 // switch on good for tracking flag
164 secondary->SetGoodForTrackingFlag(); << 165 secondary->SetGoodForTrackingFlag();
165 secondary->SetTouchableHandle(thand); << 166 secondary->SetTouchableHandle(thand);
166 // add the secondary track in the List << 167 // add the secondary track in the List
167 fParticleChangeForDecay.AddSecondary(secon << 168 fParticleChangeForDecay.AddSecondary(secondary);
168 } 169 }
169 delete products; 170 delete products;
170 << 171
171 // Kill the parent particle 172 // Kill the parent particle
172 fParticleChangeForDecay.ProposeTrackStatus( 173 fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ;
173 fParticleChangeForDecay.ProposeLocalEnergyDe 174 fParticleChangeForDecay.ProposeLocalEnergyDeposit(energyDeposit);
174 fParticleChangeForDecay.ProposeGlobalTime( f 175 fParticleChangeForDecay.ProposeGlobalTime( finalGlobalTime );
175 // reset NumberOfInteractionLengthLeft 176 // reset NumberOfInteractionLengthLeft
176 ClearNumberOfInteractionLengthLeft(); 177 ClearNumberOfInteractionLengthLeft();
177 178
178 return &fParticleChangeForDecay ; 179 return &fParticleChangeForDecay ;
179 } 180 }
180 181
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 } <<
188 182
189 183
190 184
191 185
192 186
193 187